450.0000 Family Asteraceae Dumort.; Comment. Bot. 55 (1822)

1620 genera, ca. 29.000 spp. (35.000 spp. incl. microspecies). Systematics taken mostly from Funk et al. (2009, 2020) and other recent publications. Barnadesioideae might be its own family, related to Calyceraceae.

Species listed in database: 35141; hybrids: 686

= Acarnaceae Link; (1829)

= Ambrosiaceae Bercht. & J.Presl; Prir. Rostlin: 254 (1820), nom. cons.

= Anthemidaceae Bercht. & J.Presl; Prir. Rostlin: 254 (1820)

= Aposeridaceae Raf.; New Fl. N. Amer. 4: 106 (1838)

= Arctotaceae Bessey; Nebraska Univ. Stud. 14: 107 (1914)

= Arctotidaceae Bercht. & J.Presl; Prir. Rostlin: 255 (1820)

= Artemisiaceae Martinov; Tekhno-Bot. Slovar: 48 (1820)

= Athanasiaceae Martinov; Tekhno-Bot. Slovar: 56 (1820)

= Calendulaceae Bercht. & J.Presl; Prir. Rostlin: 254 (1820)

= Carduaceae Bercht. & J.Presl; Prir. Rostlin: 255 (1820)

= Carlinaceae Bercht. & J.Presl; Prir. Rostlin: 255 (1820)

= Centaureaceae Bercht. & J.Presl; Prir. Rostlin: 255 (1820)

= Cichoriaceae Juss.; Gen. Pl.: 168 (1789), nom. cons.

= Cnicaceae Vest; Anleit. Stud. Bot.: 273, 297 (1818)

= Compositae Giseke; Prael. Ord. Nat. Pl.: 538 (1792), nom. cons.

= Coreopsidaceae Link; Handbuch 1: 768 (1829)

= Cynaraceae Burnett; Outlines Bot.: 926, 931, 1094, 1111 (1835)

= Echinopaceae Bercht. & J.Presl; Prir. Rostlin: 255 (1820)

= Eupatoriaceae Bercht. & J.Presl; Prir. Rostlin: 253 (1820)

= Gnaphaliaceae Link ex F.Rudolphi; Syst. Orb. Veg.: 46 (1830)

= Grindeliaceae Rchb. ex A.Heller; Muhlenbergia 2: 330 (1907)

= Heleniaceae Raf.; Cincinnati Lit. Gaz. 2: 28 (1824)

= Helianthaceae Bercht. & J.Presl; Prir. Rostlin: 254 (1820)

= Helichrysaceae Link; Handbuch 1: 712 (1829)

= Inulaceae Bercht. & J.Presl; Prir. Rostlin: 254 (1820)

= Ivaceae Raf.; Fl. Tellur. 1: 31 (1837)

= Lactucaceae Drude; J. A. Schenk, Handb. Bot. 3(2): 369 (1886)

= Lapsanaceae Martinov; (1820)

= Madiaceae A.Heller; Muhlenbergia 2: 332 (1907)

= Matricariaceae Voigt; Hort. Suburb. Calcutt.: 400 (1845)

= Mutisiaceae Burnett; Outlines Bot.: 934, 935, 1094, 1111 (1835)

= Nassauviaceae Burmeist.; Handb. Naturgesch.: 290 (1836)

= Partheniaceae Link; Handbuch 1: 816 (1829)

= Perdiciaceae Link; Handbuch 1: 728 (1829)

= Picridaceae Martinov; Tekhno-Bot. Slovar: 482 (1820)

= Santolinaceae Martinov; Tekhno-Bot. Slovar: 560 (1820)

= Senecionaceae Bercht. & J.Presl; Prir. Rostlin: 254 (1820)

= Serratulaceae Martinov; Tekhno-Bot. Slovar: 577 (1820)

= Tanacetaceae Vest; Anleit. Stud. Bot.: 273, 298 (1818)

= Tussilagaceae Bercht. & J.Presl; Prir. Rostlin: 254 (1820)

= Vernoniaceae Burmeist.; Handb. Naturgesch.: 296 (1836)

= Xanthiaceae Vest; Anleit. Stud. Bot.: 273, 298 (1818)

= Xeranthemaceae Döll; Rhein. Fl.: 498 (1843)

450.8761 Genus Ageratina O.Hoffm.; Bot. Jahrb. Syst. 28: 503 (1900)

Distribution: SW-USA, Mexico (many), trop. America, West Indies. In some species groups there are significant delimitation issues, especially in Central America.

Species listed in database: 316

species :

Ageratina acevedoana B.L.Turner; Phytologia 75(5): 402 (1993 publ. 1994)

Distribution: Mexico (Durango)

79 MEX

species :

Ageratina acevedoi H.Rob.; Phytologia 88(2): 171 (2006)

Distribution: Bolivia (Cochabamba, La Paz)

83 BOL

species :

Ageratina adenophora (Spreng.) R.M.King & H.Rob.; Phytologia 19: 211 (1970)

Name: Crofton weed, sticky snakeroot (EN); Klebrige Natternwurz (DE); Flor de Espuma (ES)

Distribution: Germany [I]; Portugal [I]; Spain [I]; Gibraltar [I]; France [I]; Monaco [I]; Corsica [I]; Croatia [I]; Greece [I] (Naxos [I]); Crete [I]; Morocco [I]; Algeria [I]; Azores [I] (Sao Miguel Isl. [I], Terceira [I], Sao Jorge [I], Pico [I], Faial [I]); Madeira [I] (Madeira Isl. [I], Ilhas Desertas [I], Porto Santo Isl. [I]); Canary Isl. [I] (Gran Canaria [I], Tenerife [I], La Gomera [I], La Palma Isl. [I], Hierro [I], Fuerteventura [I]); Cape Verde Isl. [I] (Ilha Brava [I]); Zimbabwe [I]; South Africa [I]; East Aegaean Isl. [I] (Samos [I], Karpathos [I]); Lebanon [I]; China [I] (Guangxi [I], Guizhou [I], Yunnan [I]); Nepal [I]; Bhutan [I]; India [I] (throughout); Myanmar [I]; Thailand [I]; Laos [I]; Cambodia [I]; South China Sea Isl. [I]; Philippines [I]; Java [I]; Australia [I] (South Australia [I], Queensland [I], New South Wales [I]); Lord Howe Isl. [I]; New Zealand [I]; Society Isl. [I] (Tahiti [I]); Hawaii [I] (Oahu [I], Molokai [I], Lanai [I], Maui [I]); USA [I] (California [I]); Mexico (Aguascalientes, Chiapas, Colima, Ciudad de Mexico, Durango, Guanajuato, Guerrero, Hidalgo, Jalisco, México State, Michoacan, Morelos, Nayarit, Oaxaca, Puebla, Queretaro, San Luis Potosi, Sinaloa, Veracruz, Zacatecas); Costa Rica [I]; Jamaica [I]; Peru [I]

11 ger 12 cor fra gib mco por spa 13 cro grc kri 20 alg mor 21 azo cny cvi mdr 26 zim 27 saf 34 eai leb 36 chi 40 bhu ind nep 41 cbd lao mya tha 42 jaw phi scs 50 aus lhi 51 nzl 61 sci 63 haw 76 usa 79 MEX 80 cos 81 jam 83 per

Remarks: Subgen. Ageratina

Synonyms: hidden

= Ageratina trapezoidea (Kunth) R.M.King & H.Rob.; Phytologia 24: 98 (1972)

= Eupatorium adenophorum Spreng.; Syst. Veg. Fl. Peruv. Chil. 3: 420 (1826)

= Eupatorium glandulosum Kunth; Nov. Gen. Sp. [H.B.K.], ed. fol. 4: 96 (1818)

= Eupatorium pasadenense Parish; Zoe 5: 75 (1900)

= Eupatorium pascuarense J.Dix; Proc. Roy. Hort. Soc. London 1: 135 (1860)

= Eupatorium trapezoideum Kunth; Ind. Sem. Hort. Berol. 13 (1847)

species :

Ageratina adenophoroides H.Rob.; Proc. Biol. Soc. Washington 116(1): 229 (2003)

Distribution: Ecuador

83 ECU

species :

Ageratina aegirophylla (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 219 (1970)

Distribution: Mexico (Oaxaca, Veracruz)

79 MEX

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Ageratina ernstii R.M.King & H.Rob.; Phytologia 38: 336 (1978)

= Eupatorium aegirophyllum B.L.Rob.; Proc. Amer. Acad. Arts 35: 329 (1900)

species :

Ageratina altissima (L.) R.M.King & H.Rob.; Phytologia 19: 212 (1970)

Name: Tall Eupatorium, White Snakeroot (EN), Hohe Natternwurz (DE)

Distribution: Belgium [I]; Germany [I]; Austria [I]; Poland [I]; Hungary [I]; South Africa [I] (Limpopo [I]); South Korea [I]; Canada (New Brunswick, Nova Scotia, Northern Territories, Ontario, Québec); USA (Alabama, Arkansas, Connecticut, District of Columbia, Delaware, Florida, Georgia, Iowa, Illinois, Indiana, Kansas, Kentucky, Louisiana, Massachusetts, Maryland, Maine, Michigan, Minnesota, Missouri, Mississippi, North Carolina, North Dakota, Nebraska, New Hampshire, New Jersey, New York, Ohio, Oklahoma, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Virginia, Vermont, Wisconsin, West Virginia)

11 aut bgm ger hun pol 27 saf 38 kor 70 CDN 72 CDN 74 USA 75 USA 77 USA 78 USA

Remarks: Subgen. Ageratina

Synonyms: hidden

= Ageratina ageratoides (L.f.) Spach; Hist. Nat. Veg. 10: 286 (1841)

= Ageratum altissimum L.; Sp. Pl. 839 (1753), not Eupatorium altissimum L. 1753

= Batschia nivea Moench; Methodus 567 (1794)

= Eupatorium aboriginum Greene; Pittonia 4: 277 (1901)

= Eupatorium ageratoides L.f.; Suppl. Pl.: 355 (1782), nom. superfl.

= Eupatorium altissimum (L.) L.; Murray, Syst. Veg. ed. 13.: 614 (1774), nom. illeg.

= Eupatorium boreale Greene; Rhodora 3: 83 (1901)

= Eupatorium cordatum var. fraseri (Poir.) DC.; Prodr. [A. P. de Candolle] 5: 175 (1836)

= Eupatorium eurybiifolium Greene; Pittonia 4: 275 (1901)

= Eupatorium fraseri Poir.; Lam., Encycl., Suppl. 2: 600 (1812)

= Eupatorium odoratum Walter; Fl. Carol.: 200 (1788), nom. illeg.

= Eupatorium rugosum f. villicaule (Fernald) Fernald; Rhodora 44: 463 (1942)

= Eupatorium rugosum Houtt.; Nat. Hist. 210: 558 (1779)

= Eupatorium rugosum var. chlorolepis Fernald; Rhodora 44: 462, tab. 739 (1942)

= Eupatorium rugosum var. tomentellum (B.L.Rob.) S.F.Blake; Rhodora 43: 557 (1941)

= Eupatorium rugosum var. villicaule (Fernald) S.F.Blake; Rhodora 43: 558 (1941)

= Eupatorium urticifolium Reichard; Syst. Pl. 3: 719 (1780), nom. superfl.

= Eupatorium urticifolium var. tomentellum B.L.Rob.; Proc. Amer. Acad. Arts 47: 195 (1911)

= Eupatorium urticifolium var. villicaule Fernald; Rhodora 10(no. 113): 87 (1908)

= Kyrstenia aboriginum (Greene) Greene; Leafl. Bot. Observ. Crit. 1: 8. (1903)

= Kyrstenia altissima (L.) Greene; Leafl. Bot. Observ. Crit. 1: 8. (1903)

= Kyrstenia borealis (Greene) Greene; Leafl. Bot. Observ. Crit. 1: 8. (1903)

variant :

var. angustata (A.Gray) Clewell & Wooton; Brittonia 23: 138 (1971)

Distribution: USA (Arkansas, Illinois, Louisiana, Missouri, Oklahoma, Texas)

74 USA 75 USA 77 USA 78 USA

Synonyms: hidden

= Eupatorium ageratoides var. angustatum A.Gray; Syn. Fl. N. Amer. 1(2): 101 (1884)

= Eupatorium angustatum (A.Gray) Greene; Pittonia 4: 277 (1901)

= Eupatorium rugosum var. angustatum (A.Gray) S.F.Blake; Rhodora 43: 557 (1941)

= Kyrstenia angustata (A.Gray) Greene; Leafl. Bot. Observ. Crit. 1: 8. (1903)

species :

Ageratina amblyolepis (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 212 (1970)

Distribution: Mexico (Guerrero, Morelos)

79 MEX

Remarks: Subgen. Ageratina

Synonyms: hidden

= Ageratina hintonii R.M.King & H.Rob.; Phytologia 28: 496 (1974)

= Eupatorium amblyolepis B.L.Rob.; Proc. Amer. Acad. Arts 35: 330 (1900)

species :

Ageratina ampla (Benth.) R.M.King & H.Rob.; Phytologia 19: 219 (1970)

Distribution: Colombia (Boyacá, Caldas, Cundinamarca, Meta, Risaralda, Tolima, Valle)

82 CLM

Remarks: Subgen. Andinia

Synonyms: hidden

= Eupatorium amplum Benth.; Pl. Hartw. [Bentham] 200 (1845)

species :

Ageratina anchistea (Grashoff & Beaman) R.M.King & H.Rob.; Phytologia 24: 80 (1972)

Distribution: Guatemala; Honduras; Nicaragua

80 GUA HON NIC

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium anchisteum Grashoff & Beaman; Rhodora 71: 567 (1969)

species :

Ageratina angustifolia (Kunth) R.M.King & H.Rob.; Phytologia 19: 219 (1970)

Distribution: Colombia (Boyacá, Cundinamarca, Tolima)

82 CLM

Synonyms: hidden

= Eupatorium angustifolium (Kunth) Spreng.; Syst. Veg. 3: 415 (1826)

= Mikania angustifolia Kunth; Nov. Gen. Sp. [H.B.K.], ed. fol. 4: 108 (1818)

species :

Ageratina anisochroma (Klatt) R.M.King & H.Rob.; Phytologia 19: 218 (1970)

Distribution: Nicaragua; Costa Rica; Panama

80 COS NIC PAN

Remarks: Subgen. Klattiella

Synonyms: hidden

= Eupatorium adspersum Klatt; Compos. Nov. Costaric. (Bot. Beibl. Leopoldina) 1895: 1. (1895) , et ex T. Durand & Pittier in Bull. Soc. Roy. Bot. Belgique 35: 279 (1896)

= Eupatorium anisochroma Klatt; Bull. Soc. Roy. Bot. Belgique 31(1): 186 (1892)

= Eupatorium durandi Klatt ex T.Durand & Pittier; Bull. Soc. Roy. Bot. Belgiqud 31: 189 (1892)

= Eupatorium polanthum Klatt; Compos. Nov. Costaric. (Bot. Beibl. Leopoldina) 3. (1895)

species :

Ageratina apollinairei (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 212 (1970)

Distribution: Colombia (Cundinamarca)

82 CLM

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium apollinairei B.L.Rob.; Proc. Amer. Acad. Arts 54: 236 (1918)

species :

Ageratina appendiculata V.M.Badillo; Ernstia 10(1): 7 (2000)

Distribution: Venezuela (Tachira, Trujillo)

82 VEN

species :

Ageratina aracaiensis V.M.Badillo; Ernstia 10(1): 8 (2000)

Distribution: Venezuela (Merida)

82 VEN

species :

Ageratina arbutifolia (Benth.) R.M.King & H.Rob.; Phytologia 19: 219 (1970)

Distribution: Colombia (Antioquia, Cauca, Cundinamarca, Santander)

82 CLM

Remarks: Subgen. Andinia

Synonyms: hidden

= Eupatorium arbutifolium Benth.; Pl. Hartw. [Bentham] 199 (1845)

= Eupatorium arbutifolium var. sublaeve B.L.Rob.; Contr. Gray Herb. 80: 13 (1928)

species :

Ageratina areolaris (DC.) D.Gage ex B.L.Turner; Phytologia Mem. 11: 19 (1997)

Distribution: Mexico (Aguascalientes, Chiapas, Chihuahua, Colima, Ciudad de Mexico, Durango, Guanajuato, Guerrero, Hidalgo, Jalisco, México State, Michoacan, Morelos, Nayarit, Nuevo Leon, Oaxaca, Puebla, Queretaro, San Luis Potosi, Sinaloa, Sonora, Tamaulipas, Tlaxcala, Veracruz, Zacatecas); Guatemala

79 MEX 80 GUA

Synonyms: hidden

= Ageratina cupressorum (Standl. & Steyerm.) R.M.King & H.Rob.; Phytologia 24: 89 (1972)

= Eupatorium areolare DC.; Prodr. [A. P. de Candolle] 5: 169 (1836)

= Eupatorium brevisetum DC.; Prodr. [A. P. de Candolle] 5: 169 (1836)

= Eupatorium conzattii Gand.; Bull. Soc. Bot. France 65: 40 (1918)

= Eupatorium cupressorum Standl. & Steyerm.; Publ. Field Mus. Nat. Hist., Bot. Ser. 23: 183 (1944)

= Eupatorium tubiflorum Benth.; Pl. Hartw. [Bentham] 76 (1841)

= Piptothrix areolaris (DC.) R.M.King & H.Rob.; Phytologia 19: 426 (1970)

species :

Ageratina aristeguietii R.M.King & H.Rob.; Phytologia 35: 497 (1977)

Distribution: Venezuela (Merida)

82 VEN

Remarks: Subgen. Ageratina

species :

Ageratina aristei (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 219 (1970)

Distribution: Colombia (Boyacá, Cundinamarca, Huila)

82 CLM

Remarks: Subgen. Andinia

Synonyms: hidden

= Eupatorium aristei B.L.Rob.; Proc. Amer. Acad. Arts 55: 6. (1919)

species :

Ageratina aromatica (L.) Spach; Hist. Nat. Veg. 10: 286 (1841)

Name: Lesser snakeroot, Small-leaved white snakeroot

Distribution: USA (Alabama, Connecticut, District of Columbia, Delaware, Florida, Georgia, Kentucky, Louisiana, Massachusetts, Maryland, Mississippi, North Carolina, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, South Carolina, Tennessee, Virginia, West Virginia)

75 USA 78 USA

Remarks: Subgen. Ageratina

Synonyms: hidden

= Ageratina cordata (Walter) Spach; Hist. Nat. Veg. 10: 286 (1841)

= Eupatorium aromaticum L.; Sp. Pl. 839 (1753)

= Eupatorium aromaticum var. melissoides (Willd.) A.Gray; Syn. Fl. N. Amer. 1(2): 101 (1884)

= Eupatorium ceanothifolium Muhl. ex Willd.; Sp. Pl. 3: 1755 (1804)

= Eupatorium cordatum Walter; Fl. Carol.: 199 (1788), nom. illeg.

= Eupatorium cordiforme Poir.; Encycl. Suppl. 2: 600 (1812)

= Eupatorium engelmannianum Link ex Torr. & A.Gray; Fl. N. Amer. 2: 502 (1843), nom. nud.

= Eupatorium latidens Small; Man. S. E. Fl. 1327 (1933)

= Eupatorium melissoides Willd.; Sp. PI.

= Eupatorium nemorale Greene; Pittonia 4: 278 (1901)

= Eupatorium tracyi Greene; Pittonia 4: 278 (1901)

= Eupatorium viburnifolium Greene; Pittonia 4: 276 (1901)

= Kyrstenia aromatica (L.) Greene; Leafl. Bot. Observ. Crit. 1: 8. (1903)

= Kyrstenia ceanothifolia (Muhl. ex Willd.) Greene; Leafl. Bot. Observ. Crit. 1: 8. (1903)

= Kyrstenia melissoides (Willd.) Greene; Leafl. Bot. Observ. Crit. 1: 8. (1903)

= Kyrstenia nemoralis (Greene) Greene; Leafl. Bot. Observ. Crit. 1: 8. (1903)

= Kyrstenia tracyi (Greene) Greene; Leafl. Bot. Observ. Crit. 1. 8. (1903)

= Kyrstenia viburnifolia (Greene) Greene; Leafl. Bot. Observ. Crit. 1: 8. (1903)

variant :

var. incisa (A.Gray) C.F.Reed; Phytologia 63: 412 (1987)

Distribution: USA (Florida, Virginia)

78 USA

Synonyms: hidden

= Eupatorium aromaticum var. incisum A.Gray; Syn. Fl. N. Amer. 1, pt. 2: 101 (1884)

species :

Ageratina arsenei (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 212 (1970)

Distribution: Mexico (Colima, Ciudad de Mexico, Guanajuato, Jalisco, México State, Michoacan, Nayarit, Oaxaca, Queretaro, San Luis Potosi)

79 MEX

Synonyms: hidden

= Eupatorium arsenei B.L.Rob.; Contr. Gray Herb. 104: 10 (1934)

species :

Ageratina asclepiadea (L.f.) R.M.King & H.Rob.; Phytologia 60: 80 (1986)

Distribution: Colombia (Boyacá, Cundinamarca, Tolima)

82 CLM

Remarks: Subgen. Andinia

Synonyms: hidden

= Ageratina humboldtii (Hieron.) R.M.King & H.Rob.; Phytologia 19: 222 (1970)

= Ageratina pomaderrifolia (Benth.) R.M.King & H.Rob.; Phytologia 19: 225 (1970)

= Cacalia asclepiadea L.f.; Suppl. Pl. 352 (1781)

= Eupatorium coperense Hieron.; Bot. Jahrb. Syst. 21: 330 (1895)

= Eupatorium humboldtii Hieron.; Bot. Jahrb. Syst. 28: 571 (1901)

= Eupatorium pomaderrifolium Benth.; Pl. Hartw. [Bentham] 199 (1845)

species :

Ageratina astellera (B.L.Turner) B.L.Turner; Phytologia 63: 4 (1987)

Distribution: Mexico (Coahuila, Nuevo Leon, Zacatecas)

79 MEX

Synonyms: hidden

= Eupatorium astellerum B.L.Turner; Wrightia 5: 353 (1977)

species :

Ageratina atrocordata (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 212 (1970)

Distribution: Mexico (Chiapas, Colima, Durango, Guanajuato, Guerrero, Jalisco, México State, Michoacan, Nuevo Leon, Oaxaca, Queretaro, Sinaloa, Veracruz); Guatemala

79 MEX 80 GUA

Remarks: Subgen. Ageratina

Synonyms: hidden

= Ageratina fosbergii R.M.King & H.Rob.; Phytologia 28: 495 (1974)

= Ageratina peracuminata R.M.King & H.Rob.; Phytologia 38: 328 (1978)

= Eupatorium atrocordatum B.L.Rob.; Contr. Gray Herb. 104: 12 (1934)

species :

Ageratina austin-smithii R.M.King & H.Rob.; Phytologia 28: 494 (1974)

Distribution: Costa Rica

80 COS

Remarks: Subgen. Ageratina

species :

Ageratina ayerscottiana B.L.Turner; Phytologia 79(4): 309 (1995 publ. 1996)

Distribution: Mexico (Chihuahua)

79 MEX

species :

Ageratina baccharoides (Kunth) R.M.King & H.Rob.; Phytologia 19: 219 (1970)

Distribution: Colombia (Boyacá, Cauca, Cesar, Cundinamarca, Norte de Santander, Santander)

82 CLM

Remarks: Subgen. Andinia

Synonyms: hidden

= Eupatorium baccharoides Kunth; Nov. Gen. Sp. [H.B.K.], ed. fol. 4: 132 (1818)

= Eupatorium baccharoides var. araneotectum B.L.Rob.; Contr. Gray Herb. 80: 14 (1928)

= Eupatorium baccharoides var. fratris B.L.Rob.; Contr. Gray Herb. 68: 10 (1923)

= Eupatorium bogotense DC.; Prodr. [A. P. de Candolle] 5: 181 (1836)

species :

Ageratina badia (Klatt) R.M.King & H.Rob.; Phytologia 19: 212 (1970)

Distribution: Costa Rica; Panama

80 COS PAN

Remarks: Subgen. Ageratina

Synonyms: hidden

= Ageratina allenii (Standl.) R.M.King & H.Rob.; Phytologia 24: 80 (1972)

= Ageratina barbensis R.M.King & H.Rob.; Phytologia 24: 83 (1972)

= Ageratina burgeri R.M.King & H.Rob.; Phytologia 24: 85 (1972)

= Ageratina subglabra R.M.King & H.Rob.; Phytologia 24: 97 (1972)

= Ageratina whitei R.M.King & H.Rob.; Phytologia 28: 496 (1974)

= Eupatorium allenii Standl.; Publ. Field Mus. Nat. Hist., Bot. Ser. 18: 1457 (1938)

= Eupatorium badium Klatt; T. Durand & Pittier in Bull. Soc. Roy. Bot. Belgique 31: 186 (1892)

= Eupatorium burgeri (R.M.King & H.Rob.) L.O.Williams; Fieldiana, Bot. 36: 84 (1975)

= Eupatorium chlorophyllum Klatt; T. Durand & Pitlier

species :

Ageratina barclayae R.M.King & H.Rob.; Phytologia 54: 38 (1983)

Distribution: Colombia (Cundinamarca, Magdalena)

82 CLM

Remarks: Subgen. Andinia

species :

Ageratina barriei B.L.Turner; Phytologia 64(1): 14 (1987)

Distribution: Mexico (Colima, Jalisco)

79 MEX

species :

Ageratina beamanii B.L.Turner; Phytologia 64(1): 15 (1987)

Distribution: Mexico (Durango, Jalisco, Nayarit)

79 MEX

species :

Ageratina bellidifolia (Benth.) R.M.King & H.Rob.; Phytologia 19: 212 (1970)

Distribution: Mexico (Chiapas, Colima, Durango, Guerrero, Hidalgo, Jalisco, México State, Michoacan, Oaxaca, Puebla, Sinaloa, Veracruz); Guatemala; Honduras

79 MEX 80 GUA HON

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium bellidifolium Benth.; Pl. Hartw. [Bentham] 43 (1840)

= Kyrstenia bellidifolia (Benth.) Greene; Leafl. Bot. Observ. Crit. 1: 9. (1903)

species :

Ageratina bishopii R.M.King & H.Rob.; Phytologia 54: 37 (1983)

Distribution: Peru

83 PER

Remarks: Subgen. Ageratina

species :

Ageratina blepharilepis (Sch.Bip.) R.M.King & H.Rob.; Phytologia 19: 219 (1970)

Distribution: Mexico (Aguascalientes, Colima, Durango, Jalisco, Michoacan, Nayarit, Queretaro, Sinaloa, Zacatecas)

79 MEX

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium blepharilepis Sch.Bip.; Bot. Voy. Herald 300 (1856)

species :

Ageratina bobjansenii B.L.Turner; Phytologia 81(2): 118 (1996 publ. 1997)

Distribution: Mexico (Durango, Sinaloa)

79 MEX

species :

Ageratina boekei R.M.King & H.Rob.; Phytologia 54: 39 (1983)

Distribution: Peru

83 PER

Remarks: Subgen. Andinia

species :

Ageratina boyacensis R.M.King & H.Rob.; Phytologia 24: 84 (1972)

Distribution: Colombia (Boyacá, Cundinamarca)

82 CLM

Remarks: Subgen. Andinia

Synonyms: hidden

= Eupatorium boyacense B.L.Rob.; Contr. Gray Herb. 104: 13 (1934)

species :

Ageratina brandegeana (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 219 (1970)

Distribution: Mexico (Guanajuato, Hidalgo, Queretaro, San Luis Potosi)

79 MEX

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium brandegeanum B.L.Rob.; Contr. Gray Herb. 68: 10 (1923)

species :

Ageratina brevipes (DC.) R.M.King & H.Rob.; Phytologia 19: 219 (1970)

Distribution: Mexico (Aguascalientes, Chihuahua, Colima, Ciudad de Mexico, Durango, Guanajuato, Guerrero, Hidalgo, Jalisco, México State, Michoacan, Morelos, Nuevo Leon, Oaxaca, Puebla, Queretaro, San Luis Potosi, Tamaulipas, Veracruz, Zacatecas)

79 MEX

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium brevipes DC.; Prodr. [A. P. de Candolle] 5: 168 (1836)

= Kyrstenia brevipes (DC.) Greene; Leafl. Bot. Observ. Crit. 1: 9. (1903)

species :

Ageratina bustamenta (DC.) R.M.King & H.Rob.; Phytologia 19: 213 (1970)

Distribution: Mexico (Aguascalientes, Chiapas, Coahuila, Colima, Ciudad de Mexico, Durango, Guanajuato, Guerrero, Hidalgo, Jalisco, México State, Michoacan, Morelos, Nayarit, Nuevo Leon, Oaxaca, Puebla, Queretaro, San Luis Potosi, Sinaloa, Sonora, Tabasco, Tamaulipas, Tlaxcala, Veracruz, Zacatecas); Costa Rica; Panama

79 MEX 80 COS PAN

Remarks: Subgen. Ageratina. Often included completely in A. pichinchensis. King & Robinson split this species much further in many smaller units, especially in Costa Rica and Panama

Synonyms: hidden

= Ageratina almedae R.M.King & H.Rob.; Phytologia 38: 326 (1978)

= Ageratina costaricensis R.M.King & H.Rob.; Phytologia 24: 87 (1972)

= Ageratina croatii R.M.King & H.Rob.; Phytologia 29: 347(348). (1975)

= Ageratina herrerae R.M.King & H.Rob.; Phytologia 69: 67 (1990)

= Ageratina ixiocladon (Benth. ex Oerst.) R.M.King & H.Rob.; Phytologia 19: 223 (1970)

= Ageratina nelsonii R.M.King & H.Rob.; Phytologia 24: 94 (1972)

= Ageratina pichinchensis var. bustamenta (DC.) R.M.King & H.Rob.; Phytologia 69: 61 (1990)

= Ageratina rufa (Greene) R.M.King & H.Rob.; Phytologia 19: 216 (1970)

= Ageratina sinaloensis R.M.King & H.Rob.; Phytologia 38: 330 (1978)

= Ageratina subcordata (Benth. ex Oerst.) R.M.King & H.Rob.; Phytologia 19: 217 (1970)

= Eupatorium bustamenta DC.; Prodr. [A. P. de Candolle] 5: 168 (1836)

= Eupatorium donnell-smithii J.M.Coult.; Bot. Gaz. (Crawfordsville) 16

= Eupatorium ixiocladon Benth. ex Oerst.; Vidensk. Meddel. Dansk Naturhist. Foren. Kobenhavn 77 (1852)

= Eupatorium morelense B.L.Rob.; Contr. Gray Herb. 104: 22., nom. nov. (1934)

= Eupatorium subcordatum Benth. ex Oerst.; Vidensk. Meddel. Dansk Naturhist. Foren. Kjobenhavn 77 (1852)

= Kyrstenia donnell-smithii (J.M.Coult.) Greene; Leafl. Bot. Observ. Crit. 1: 9. (1903)

= Kyrstenia rufa Greene; Leafl. Bot. Observ. Crit. 1: 10 (1903)

species :

Ageratina caeciliae (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 220 (1970)

Distribution: Guatemala; Honduras

80 GUA HON

Synonyms: hidden

= Eupatorium caeciliae B.L.Rob.; Contr. Gray Herb. 90: 23 (1930)

= Eupatorium vetularum Standl. & Steyerm.; Publ. Field Mus. Nat. Hist., Bot. Ser. 23: 190 (1944)

species :

Ageratina calaminthifolia (Kunth) R.M.King & H.Rob.; Phytologia 19: 220 (1970)

Distribution: Mexico (Aguascalientes, Chihuahua, Coahuila, Ciudad de Mexico, Durango, Guanajuato, Guerrero, Hidalgo, Jalisco, México State, Morelos, Nayarit, Nuevo Leon, Oaxaca, Puebla, Queretaro, San Luis Potosi, Sinaloa, Sonora, Tamaulipas, Tlaxcala, Veracruz, Zacatecas)

79 MEX

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium calaminthifolium Kunth; Nov. Gen. Sp. [H.B.K.], ed. fol. 4: 101 (1818)

= Kyrstenia calaminthifolia (Kunth) Greene; Leafl. Bot. Observ. Crit. 1: 9. (1903)

species :

Ageratina calophylla (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 220 (1970)

Distribution: Mexico (Aguascalientes, Coahuila, Ciudad de Mexico, Guanajuato, Hidalgo, México State, Nuevo Leon, Oaxaca, Puebla, Queretaro, San Luis Potosi, Tamaulipas, Tlaxcala, Veracruz, Zacatecas)

79 MEX

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium calophyllum (Greene) B.L.Rob.; Contr. Gray Herb. 75: 5. (1925)

= Kyrstenia calophylla Greene; Leafl. Bot. Observ. Crit. 1: 11 (1903)

species :

Ageratina campii H.Rob.; Proc. Biol. Soc. Washington 116(1): 231 (2003)

Distribution: Ecuador

83 ECU

species :

Ageratina campyloclada (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 220 (1970)

Distribution: Mexico (Aguascalientes, Coahuila, Nuevo Leon, Tamaulipas, Zacatecas)

79 MEX

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium campylocladum B.L.Rob.; Proc. Boston Soc. Nat. Hist. 31: 247 (1904)

species :

Ageratina capazica V.M.Badillo; Ernstia 10(1): 9 (2000)

Distribution: Venezuela (Merida)

82 VEN

species :

Ageratina capillipes R.M.King & H.Rob.; Phytologia 69(2): 62 (1990)

Distribution: Mexico (Chiapas); Guatemala

79 MEX 80 GUA

species :

Ageratina cardiophylla (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 220 (1970)

Distribution: Mexico (Chihuahua, Durango, Guanajuato, Guerrero, Hidalgo, Jalisco, México State, Michoacan, Puebla, Sinaloa, Sonora)

79 MEX

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium cardiophyllum B.L.Rob.; Proc. Amer. Acad. Arts 35: 331 (1900)

species :

Ageratina carmonis (Standl. & Steyerm.) R.M.King & H.Rob.; Phytologia 49: 3 (1981)

Distribution: Mexico (Oaxaca); Guatemala; Honduras

79 MEX 80 GUA HON

Synonyms: hidden

= Eupatorium carmonis Standl. & Steyerm.; Publ. Field Mus. Nat. Hist.

species :

Ageratina cartagoensis R.M.King & H.Rob.; Phytologia 24: 85 (1972)

Distribution: Guatemala; El Salvador; Costa Rica

80 COS ELS GUA

Synonyms: hidden

= Ageratina alexanderi R.M.King & H.Rob.; Phytologia 69(2): 62 (1990)

= Ageratina valerioi R.M.King & H.Rob.; Phytologia 69(2): 76 (1990)

species :

Ageratina celestini (Cuatrec.) R.M.King & H.Rob.; Phytologia 65: 62 (1988)

Distribution: Colombia

82 CLM

Synonyms: hidden

= Eupatorium celestini Cuatrec.; Trab. Mus. Nac. Ci. Nat., ser. Bot. 29: chart 12 (1935)

species :

Ageratina cerifera (McVaugh) R.M.King & H.Rob.; Phytologia 24: 86 (1972)

Distribution: Mexico (Colima, Guerrero, Jalisco, México State, Michoacan)

79 MEX

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium ceriferum McVaugh; Contr. Univ. Michigan Herb. 9: 390 (1972)

species :

Ageratina chachapoyasensis (Cuatrec.) R.M.King & H.Rob.; Phytologia 19: 220 (1970)

Distribution: Peru

83 PER

Remarks: Subgen. Andinia

Synonyms: hidden

= Eupatopium chachapoyasense Cuatrec.; Ann. Missouri Bot. Gard. 52: 306 (1965)

species :

Ageratina chazaroana B.L.Turner; Phytologia 67(2): 115 (1989)

Distribution: Mexico (Chiapas, Veracruz)

79 MEX

species :

Ageratina chiapensis (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 213 (1976)

Distribution: Mexico (Chiapas, Colima, Guerrero, Hidalgo, Jalisco, México State, Michoacan, Morelos, Oaxaca, Tlaxcala, Veracruz); Guatemala

79 MEX 80 GUA

Synonyms: hidden

= Eupatorium chiapense B.L.Rob.; Proc. Amer. Acad. Arts 332 (1900)

species :

Ageratina chimalapana B.L.Turner; Phytologia 67(5): 400 (1989)

Distribution: Mexico (Oaxaca)

79 MEX

species :

Ageratina chiriquensis (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 213 (1970)

Distribution: Panama

80 PAN

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium chiriquense B.L.Rob.; Proc. Amer. Acad. Arts 54: 238 (1918)

species :

Ageratina choricephala (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 213 (1970)

Distribution: Mexico (Chihuahua, Colima, Ciudad de Mexico, Durango, Guanajuato, Guerrero, Hidalgo, Jalisco, México State, Michoacan, Morelos, Nayarit, Oaxaca, Puebla, Queretaro, San Luis Potosi, Sinaloa, Tlaxcala, Veracruz, Zacatecas)

79 MEX

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium choricephalum B.L.Rob.; Proc. Amer. Acad. Arts 54: 239 (1918)

species :

Ageratina choricephaloides (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 213 (1970)

Distribution: Ecuador; Peru

83 ECU PER

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium choricephaloides B.L.Rob.; Proc. Amer. Acad. Arts 55: 8. (1919)

species :

Ageratina colimana B.L.Turner; Phytologia 90(3): 358 (2008)

Distribution: Mexico (Colima, Jalisco)

79 MEX

species :

Ageratina collodes (B.L.Rob. & Greenm.) R.M.King & H.Rob.; Phytologia 19: 220 (1970)

Distribution: Mexico (Oaxaca)

79 MEX

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium collodes B.L.Rob. & Greenm.; Amer. J. Sci. Arts, ser. 3, 50: 152 (1895)

species :

Ageratina concordiana B.L.Turner; Phytoneuron 2012-91: 1 (2012)

Distribution: Mexico (Durango, Sinaloa)

79 MEX

species :

Ageratina contigua R.M.King & H.Rob.; Phytologia 58: 258 (1985)

Distribution: Costa Rica

80 COS

Remarks: Subgen. Ageratina

species :

Ageratina contorta (C.D.Adams) R.M.King & H.Rob.; Phytologia 24: 87 (1972)

Distribution: Jamaica

81 JAM

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium contortum C.D.Adams; Phytologia 21: 408 (1971)

species :

Ageratina corylifolia (Griseb.) R.M.King & H.Rob.; Phytologia 19: 213 (1970)

Distribution: Cuba; Jamaica

81 CUB JAM

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium corylifollum Griseb.; Fl. Brit. W. I. 361 (1861)

species :

Ageratina crassiceps (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 220 (1970)

Distribution: Colombia (Santander)

82 CLM

Remarks: Subgen. Andinia

Synonyms: hidden

= Eupatorium crassiceps B.L.Rob.; Contr. Gray Herb. 80: 17 (1928)

species :

Ageratina crassimonticola Rzed.; Phytoneuron 2018-30: 4 (2018)

Distribution: Mexico (Guanajuato)

79 MEX

species :

Ageratina crassiramea (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 228 (1970)

Distribution: Mexico (Chiapas, Guerrero, Jalisco, México State, Michoacan, Morelos, Oaxaca, Veracruz); Guatemala; El Salvador; Honduras; Nicaragua

79 MEX 80 ELS GUA HON NIC

Synonyms: hidden

= Eupatorium crassirameum B.L.Rob.; Proc. Amer. Acad. Arts 35: 332 (1900)

= Pachythamnus crassirameus (B.L.Rob.) R.M.King & H.Rob.; Phytologia 23: 154 (1972)

species :

Ageratina cremasta (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 220 (1970)

Distribution: Mexico (Guerrero, Michoacan, Oaxaca)

79 MEX

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium cremastum B.L.Rob.; Proc. Amer. Acad. Arts 42: 38 (1906)

species :

Ageratina cronquistii R.M.King & H.Rob.; Phytologia 38: 334 (1978)

Distribution: Mexico (Durango)

79 MEX

Remarks: Subgen. Neogreenella

species :

Ageratina cruzii B.L.Turner; Phytologia 73(4): 304 (1992)

Distribution: Mexico (Oaxaca)

79 MEX

species :

Ageratina cuatrecasasii R.M.King & H.Rob.; Phytologia 24: 88 (1972)

Distribution: Colombia (Cesar, Magdalena); Venezuela (Zulia)

82 CLM VEN

Remarks: Subgen. Andinia

species :

Ageratina cuencana (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 213 (1970)

Distribution: Ecuador; Peru

83 ECU PER

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium cuencanum B.L.Rob.; Proc. Amer. Acad. Arts 54: 241 (1918)

species :

Ageratina cuicatlana B.L.Turner; Phytologia 95(2): 141, fig. 1, map 1 (2013)

Distribution: Mexico (Oaxaca)

79 MEX

species :

Ageratina cumbensis H.Rob.; Proc. Biol. Soc. Washington 116(1): 233 (2003)

Distribution: Ecuador

83 ECU

form :

f. glandulifera H.Rob.; Proc. Biol. Soc. Washington 116(1): 235 (2003)

Distribution: Ecuador

83 ECU

species :

Ageratina cutervensis (Hieron.) R.M.King & H.Rob.; Phytologia 19: 213 (1970)

Distribution: Ecuador; Peru

83 ECU PER

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium cutervense Hieron.; Urb., Bot. Jahrb. Syst. 40: 383 (1908)

species :

Ageratina cuzcoensis (Hieron.) R.M.King & H.Rob.; Phytologia 19: 220 (1970)

Distribution: Peru

83 PER

Remarks: Subgen. Apoda

Synonyms: hidden

= Eupatorium cuzcoense Hieron.; Urb., Bot. Jahrb. Syst. 40: 376 (1908)

species :

Ageratina cylindrica (McVaugh) R.M.King & H.Rob.; Phytologia 24: 89 (1972)

Distribution: Mexico (Colima, Ciudad de Mexico, Guerrero, Jalisco, México State, Michoacan, Morelos)

79 MEX

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium cylindricum McVaugh; Contr. Univ. Michigan Herb. 9: 393 (1972)

species :

Ageratina dasyneura (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 213 (1970)

Distribution: Colombia (Bolívar, Córdoba)

82 CLM

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium dasyneurum B.L.Rob.; Proc. Amer. Acad. Arts 55: 10 (1919)

species :

Ageratina davidsei R.M.King & H.Rob.; Phytologia 38: 327 (1978)

Distribution: Colombia (Caquetá)

82 CLM

Remarks: Subgen. Ageratina

species :

Ageratina deltoidea (Jacq.) R.M.King & H.Rob.; Phytologia 19: 221 (1970)

Distribution: Mexico (Ciudad de Mexico, Guanajuato, Hidalgo, Jalisco, México State, Michoacan, Morelos, Oaxaca, Puebla, Queretaro, San Luis Potosi, Tlaxcala, Veracruz)

79 MEX

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium deltoideum Jacq.; Pl. Hort. Schoenbr. 3: 63. T. 369 (1798)

= Eupatorium innumerosum DC.; Prodr. [A. P. de Candolle] 5: 164 (1836)

= Eupatorium palaeforme Klatt; Leopoldina 20: 76 (1884)

= Eupatorium triangulare Moc. ex DC.; Prodr. [A. P. de Candolle] 5: 166 (1836), nom. nud. ex Sessé & Moc., Pl. Nov. Hisp. 134 (1889), Naturaleza (Mexico City), ser. 2(I): 125. App. Ed. 2. (1893)

= Kyrstenia deltoidea (Jacq.) Greene; Leafl. Bot. Observ. Crit. 1: 9. (1903)

species :

Ageratina desquamans (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 221 (1970)

Distribution: Mexico (Oaxaca)

79 MEX

Remarks: Subgen. Neogreenella

Conservation Status: known from type only

Synonyms: hidden

= Eupatorium desquamans B.L.Rob.; Proc. Amer. Acad. Arts 35: 333 (1900)

species :

Ageratina dictyoneura (Urb.) R.M.King & H.Rob.; Phytologia 19: 221 (1970)

Distribution: Dominican Republic; Haiti

81 HIS

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium dictyoneurum Urb.; Symb. Antill. 3: 402 (1903)

species :

Ageratina dillonii H.Rob.; Phytologia 88(2): 169 (2006)

Distribution: Peru

83 PER

species :

Ageratina diversipila R.M.King & H.Rob.; Phytologia 24: 89 (1972)

Distribution: Costa Rica

80 COS

Remarks: Subgen. Ageratina

species :

Ageratina dolichobasis (McVaugh) R.M.King & H.Rob.; Phytologia 24: 90 (1972)

Distribution: Mexico (Colima, Guerrero, México State, Jalisco, Michoacan, Oaxaca)

79 MEX

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium dolichobasis McVaugh; Contr. Univ. Michigan Herb. 9: 395 (1972)

species :

Ageratina dombeyana (DC.) R.M.King & H.Rob.; Phytologia 19: 221 (1970)

Distribution: Peru

83 PER

Remarks: Subgen. Apoda

Synonyms: hidden

= Eupatorium dombeyanum DC.; Prodr. [A. P. de Candolle] 5: 167 (1836)

species :

Ageratina dorrii V.M.Badillo; Ernstia 10(1): 10 (2000)

Distribution: Venezuela (Merida)

82 VEN

species :

Ageratina eleazarii Rzed.; Phytoneuron 2018-30: 1 (2018)

Distribution: Mexico (Queretaro)

79 MEX

species :

Ageratina elegans (Kunth) R.M.King & H.Rob.; Phytologia 19: 221 (1970)

Distribution: Colombia (Boyacá, Cundinamarca); Peru

82 CLM 83 PER

Remarks: Subgen. Andinia

Synonyms: hidden

= Eupatorium elegans Kunth; Nov. Gen. Sp. [H.B.K.], ed. fol. 4: 104 (1818)

= Eupatorium rorulentum B.L.Rob.; Proc. Amer. Acad. Arts 54: 255 (1918)

species :

Ageratina enixa (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 214 (1970)

Distribution: Mexico (Ciudad de Mexico, Hidalgo, México State, Puebla, Tlaxcala, Veracruz)

79 MEX

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium enixum B.L.Rob.; Contr. Gray Herb. 68: 15 (1923)

species :

Ageratina espinosarum (A.Gray) R.M.King & H.Rob.; Phytologia 19: 221 (1970)

Distribution: Mexico (Aguascalientes, Coahuila, Ciudad de Mexico, Durango, Guanajuato, Hidalgo, Jalisco, México State, Nayarit, Nuevo Leon, Oaxaca, Puebla, Queretaro, San Luis Potosi, Tabasco, Tamaulipas, Tlaxcala, Veracruz, Zacatecas)

79 MEX

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium espinosarum A.Gray; Proc. Amer. Acad. Arts 15: 28 (1879)

= Eupatorium espinosarum var. ambiguum A.Gray; Proc. Amer. Acad. Arts 15: 28 (1879)

= Eupatorium spiraeifolium Sch.Bip.; Bull. Herb. Boissier 3: 624 (1895)

= Kyrstenia espinosarum (A.Gray) Greene; Leafl. Bot. Observ. Crit. 1: 9. (1903)

= Kyrstenia laeta Greene; Leafl. Bot. Observ. Crit. 1: 11 (1903)

variant :

var. subintegrifolia (B.L.Rob.) B.L.Turner; Phytologia 64: 22 (1987)

Distribution: Mexico (Nuevo Leon, Tamaulipas, San Luis Potosi)

79 MEX

Synonyms: hidden

= Ageratina subintegra (Greene) R.M.King & H.Rob.; Phytologia 19: 226 (1970)

= Eupatorium espinosarum var. subintegrifolium B.L.Rob.; Proc. Amer. Acad. Arts 26: 165 (1891)

= Eupatorium subintegrum (Greene) B.L.Rob.; Contr. Gray Herb. 75: 13 (1925)

= Kyrstenia subintegra Greene; Leafl. Bot. Observ. Crit. 1: 10 (1903)

species :

Ageratina etlana B.L.Turner; Phytologia 95(2): 141, fig. 2 map 2 (2013)

Distribution: Mexico (Oaxaca)

79 MEX

species :

Ageratina etlensis (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 221 (1970)

Distribution: Mexico (C-Oaxaca)

79 MEX

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium etlense B.L.Rob.; Contr. Gray Herb. 75: 6. (1925)

species :

Ageratina ewanii H.Rob.; Proc. Biol. Soc. Washington 116(1): 235 (2003)

Distribution: Colombia

82 CLM

species :

Ageratina fastigiata (Kunth) R.M.King & H.Rob.; Phytologia 19: 221 (1970)

Distribution: Colombia (Boyacá, Cesar, Cundinamarca, Nariño, Norte de Santander, Putumayo, Santander); Ecuador; Peru

82 CLM 83 ECU PER

Remarks: Subgen. Andinia

Synonyms: hidden

= Ageratina exsertovenosa (Klatt) R.M.King & H.Rob.; Phytologia 19: 221 (1970)

= Eupatorium exsertovenosum Klatt; Abh. Naturf. Ges. Halle 15: 324 (1882)

= Eupatorium exsertovenosum var. crenatodentatum (Hieron.) B.L.Rob.; Proc. Amer. Acad. Arts 55: 74 (1919)

= Eupatorium exsertovenosum var. crenatum (Hieron.) B.L.Rob.; Proc. Amer. Acad. Arts 55: 74 (1919)

= Eupatorium exsertovenosum var. lanceolatum (Hieron.) B.L.Rob.; Proc. Amer. Acad. Arts 55: 74 (1919)

= Eupatorium exsertovenosum var. pseudofastigiatum (Hieron.) B.L.Rob.; Proc. Amer. Acad. Arts 54: 359 (1918)

= Eupatorium fastigiatum Kunth; Nov. Gen. Sp. [H.B.K.], ed. fol. 4: 98 (1818)

= Eupatorium loxense Hieron.; Bot. Jahrb. Syst. 21: 331 (1895)

= Eupatorium pseudofastigiatum Hieron.; Bot. Jahrb. Syst. 36: 467 (1905)

= Eupatorium pseudofastigiatum var. crenata Hieron.; Bot. Jahrb. Syst. 36(5): 468 (1905)

= Eupatorium pseudofastigiatum var. crenatodentata Hieron.; Bot. Jahrb. Syst. 36(5): 468 (1905)

= Eupatorium pseudofastigiatum var. lanceolata Hieron.; Bot. Jahrb. Syst. 36(5): 468 (1905)

species :

Ageratina feuereri H.Rob.; Phytologia 88(2): 174 (2006)

Distribution: Bolivia

83 BOL

species :

Ageratina flaviseta (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 221 (1970)

Distribution: Colombia (Cundinamarca, Magdalena, Santander)

82 CLM

Remarks: Subgen. Andinia

Synonyms: hidden

= Eupatorium flavisetum B.L.Rob.; Proc. Amer. Acad. Arts 54: 244 (1918)

= Eupatorium flavisetum var. asetosum B.L.Rob.; Contr. Gray Herb. 80: 20 (1928)

species :

Ageratina fleischmannioides H.Rob.; Phytologia 88(2): 168 (2006)

Distribution: Colombia (Antioquia)

82 CLM

species :

Ageratina flourensifolia (B.L.Turner) R.M.King & H.Rob.; Phytologia 48: 221 (1981)

Distribution: Mexico (C-Coahuila)

79 MEX

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium flourensifolium B.L.Turner; Wrightia 5: 353 (1977)

species :

Ageratina funckii (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 214 (1970)

Distribution: Colombia (Magdalena, Norte de Santander)

82 CLM

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium funckii B.L.Rob.; Contr. Gray Herb. 68: 16 (1923)

species :

Ageratina geminata (McVaugh) R.M.King & H.Rob.; Phytologia 24. 90 (1972)

Distribution: Mexico (Jalisco, Michoacan)

79 MEX

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium geminatum McVaugh; Contr. Univ. Michigan Herb. 9: 396 (1972)

species :

Ageratina gentryana B.L.Turner; Phytologia 64(1): 16 (1987)

Distribution: Mexico (Durango, Sinaloa)

79 MEX

species :

Ageratina gilbertii (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 214 (1970)

Distribution: Peru

83 PER

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium gilbertii B.L.Rob.; Proc. Amer. Acad. Arts 55: 16 (1919)

species :

Ageratina glabrata (Kunth) R.M.King & H.Rob.; Phytologia 19: 214 (1970)

Distribution: Mexico (Ciudad de Mexico, Durango, Guanajuato, Guerrero, Hidalgo, Jalisco, México State, Michoacan, Morelos, Oaxaca, Puebla, Queretaro, San Luis Potosi, Sinaloa, Tamaulipas, Tlaxcala, Veracruz, Zacatecas)

79 MEX

Remarks: Subgen. Ageratina

Synonyms: hidden

= Ageratina modesta (Kunth) R.M.King & H.Rob.; Phytologia 24: 93 (1972)

= Eupatorium glabratum Kunth; Nov. Gen. Sp. [H.B.K.], ed. fol. 4: 100 (1818)

= Eupatorium gonocladium DC.; Prodr. [A. P. de Candolle] 5: 171 (1836)

= Eupatorium modestum Kunth; Ind. Sem. Hort. Berol. 13 (1847)

= Eupatorium piperitum Sessé & Moc.; Fl. Mexic. (ed. 2) 182 (1894)

= Eupatorium xalapense Kunth; Nov. Gen. Sp. [H.B.K.], ed. fol. 4: 100 (1818)

species :

Ageratina glandulifera (Hieron.) R.M.King & H.Rob.; Phytologia 19: 214 (1970)

Distribution: Ecuador

83 ECU

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium glanduliferum Hieron.; Sodiro, Bot. Jahrb. Syst. 29: 13 (1900)

species :

Ageratina glauca (Sch.Bip. ex Klatt) R.M.King & H.Rob.; Phytologia 19: 221 (1970)

Distribution: Mexico (Guerrero, Oaxaca, Veracruz); Guatemala

79 MEX 80 GUA

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium glaucum Sch.Bip. ex Klatt; Leopoldina 20: 89 (1884)

= Eupatorium orizabae Sch.Bip. ex Hemsl.; Biol. Cent.-Amer.

species :

Ageratina glechonophylla (Less.) R.M.King & H.Rob.; Phytologia 19: 214 (1970)

Name: Barba de viejo, barbón [Chile]

Distribution: Colombia (Nariño, Putumayo); Ecuador; Peru; Bolivia (Chuquisaca, Cochabamba, La Paz, Oruro, Potosí, Santa Cruz); Argentina (Jujuy, Salta); Chile (Antofagasta, Coquimbo, Valparaíso, Metropolitana de Santiago, O´Higgins, Maule, Ñuble, Biobío)

82 CLM 83 BOL ECU PER 85 ARG CLE

Remarks: Subgen. Ageratina

Synonyms: hidden

= Ageratina azangaroensis (Sch.Bip. ex Wedd.) R.M.King & H.Rob.; Phytologia 19: 212 (1970)

= Ageratina remyana (Phil.) R.M.King & H.Rob.; Phytologia 49: 3 (1981)

= Ageratum conspicuum K.Koch & Fintelm.; Wochenschr. Gärtnerei Pflanzenk. 1: 33 (1858)

= Eupatorium australe Bartl.; Ind. Sem. Hort. Acad. Gött. 9: t. 310 (1837), Linnaea 12. Litt. 81 (1839)

= Eupatorium azangaroense Sch.Bip. ex Wedd.; Chlor. Andina 1: 217 (1857)

= Eupatorium bartlingianum Steud.; Nomencl. Bot. 1: 606 (1840), nom. nud.

= Eupatorium chilense Bertero; Mercurio Chileno 13: 616 (1829)

= Eupatorium glechonophyllum Less.; Linnaea 6: 105 (1831)

= Eupatorium gracile D.Don ex Hook. & Arn.; Companion Bot. Mag. 1: 243 (1835), nom. nud.

= Eupatorium inconspicuum Sch.Bip.; Linnaea 34: 535 (1865)1866

= Eupatorium remyanum Phil.; Fl. Atacam. 29 (1860)

= Kyrstenia glechonophylla (Less.) Greene; Leafl. Bot. Observ. Crit. 1: 9. (1903)

species :

Ageratina glischra (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 222 (1970)

Distribution: Mexico (Coahuila, Durango, San Luis Potosi)

79 MEX

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium glischrum B.L.Rob.; Proc. Amer. Acad. Arts 54: 245 (1918)

species :

Ageratina gloeoclada (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 222 (1970)

Distribution: Peru; Bolivia (La Paz)

83 BOL PER

Remarks: Subgen. Andinia

Synonyms: hidden

= Eupatorium gloeocladum B.L.Rob.; Proc. Amer. Acad. Arts 55: 17 (1919)

= Eupatorium trichotomum Sch.Bip.; Linnaea 34: 535 (1865)1866, nom. nud.

species :

Ageratina glyptophlebia (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 222 (1970)

Distribution: Colombia (Antioquia, Bolívar, Boyacá, Cundinamarca, Norte de Santander, Santander, Tolima, Valle); Ecuador

82 CLM 83 ECU

Remarks: Subgen. Andinia

Synonyms: hidden

= Eupatorium glyptophlebium B.L.Rob.; Proc. Amer. Acad. Arts 54: 245 (1918)

species :

Ageratina gonzalezorum B.L.Turner; Phytologia 58(7): 498 (1985)

Distribution: Mexico (Durango, Nayarit)

79 MEX

Remarks: Subgen. Neogreenella

species :

Ageratina gracilenta (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 214 (1970)

Distribution: Peru

83 PER

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium gracilentum B.L.Rob.; Proc. Amer. Acad. Arts 55: 18 (1919)

species :

Ageratina gracilis (Kunth) R.M.King & H.Rob.; Phytologia 19: 214 (1970)

Distribution: Colombia (Antioquia, Arauca, Boyacá, Cauca, Cundinamarca, Magdalena, Meta, Nariño, Norte de Santander, Santander, Tolima, Valle); Venezuela (Lara, Merida, Tachira, Trujillo); Ecuador

82 CLM VEN 83 ECU

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium caducisetum DC.; Prodr. [A. P. de Candolle] 5: 165 (1836)

= Eupatorium epilobioides Kunth; Nov. Gen. Sp. [H.B.K.], ed. fol. 4: 97 (1818)

= Eupatorium gracile Kunth; Nov. Gen. Sp. [H.B.K.], ed. fol. 4: 97 (1818)

= Eupatorium gracile var. epilobioides (Kunth) B.L.Rob.; Proc. Amer. Acad. Arts 54: 313 (1918)

= Eupatorium gracile var. odoratissimum Mast.; Gard. Chron., n.s. 16: 370 (1881)

species :

Ageratina grandifolia (Regel) R.M.King & H.Rob.; Phytologia 60: 80 (1986)

Distribution: Mexico (Baja California Sur, Chiapas, Colima, Ciudad de Mexico, Guanajuato, Guerrero, Hidalgo, Jalisco, México State, Michoacan, Morelos, Nayarit, Nuevo Leon, Oaxaca, Puebla, Queretaro, San Luis Potosi, Sinaloa, Tamaulipas, Veracruz); Guatemala; Panama

79 MEX 80 GUA PAN

Remarks: Subgen. Ageratina

Synonyms: hidden

= Ageratina conspicua (Kunth & C.D.Bouché) R.M.King & H.Rob.; Phytologia 19: 213 (1970)

= Ageratina mariarum (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 215 (1970)

= Ageratina purpusii (Brandegee) R.M.King & H.Rob.; Phytologia 19: 216 (1970)

= Eupatorium conspicuum Kunth & C.D.Bouché; Index Seminum hort. Berol. 1847: 13 (1847), nom. illeg.

= Eupatorium conspicuum var. pueblense B.L.Rob.; Contr. Gray Herb. 68: 12 (1923)

= Eupatorium grandifolium Regel; Gartenflora 1: 102. T. 12 (1852)

= Eupatorium mariarum B.L.Rob.; Proc. Amer. Acad. Arts 36: 481 (1901)

= Eupatorium purpusii Brandegee; Erythea 7: 3. (1899)

= Kyrstenia grandifolia (Regel) Greene; Leafl. Bot. Observ. Crit. 1: 9. (1903)

species :

Ageratina grashoffii B.L.Turner; Phytologia 61: 77 (1986)

Distribution: Mexico (S-Durango, Nayarit)

79 MEX

species :

Ageratina guatemalensis R.M.King & H.Rob.; Phytologia 69(2): 65 (1990)

Distribution: Guatemala

80 GUA

species :

Ageratina gynoxoides (Wedd.) R.M.King & H.Rob.; Phytologia 19: 222 (1970)

Distribution: Colombia (Boyacá, Casanare, Cundinamarca, Santander)

82 CLM

Remarks: Subgen. Andinia

Synonyms: hidden

= Eupatorium gynoxoides Wedd.; Chlor. Andina 1: 216 (1857)

variant :

var. iguaquensis Aguilar-Cano & F.Ávila; Revista Acad. Colomb. Ci. Exact. 48(188): 547 (2024)

Distribution: Colombia

82 CLM

species :

Ageratina gypsophila B.L.Turner; Phytologia 57: 130 (1985)

Distribution: Mexico (Coahuila, Nuevo Leon)

79 MEX

Remarks: Subgen. Neogreenella

species :

Ageratina halbertiana (McVaugh) R.M.King & H.Rob.; Phytologia 24: 90 (1972)

Distribution: Mexico (Colima, Jalisco, Michoacan)

79 MEX

Remarks: Subgen. Neogreenella

Conservation Status: known from type only

Synonyms: hidden

= Eupatorium halbertianum McVaugh; Contr. Univ. Michigan Herb. 9: 398 (1972)

species :

Ageratina harlingii H.Rob.; Proc. Biol. Soc. Washington 116(1): 237 (2003)

Distribution: Ecuador

83 ECU

species :

Ageratina hartii (Urb.) R.M.King & H.Rob.; Phytologia 19: 222 (1970)

Distribution: Jamaica

81 JAM

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium hartii Urb.; Symb. Antill. 3: 395 (1903)

species :

Ageratina hasegawana B.L.Turner; Phytologia 92(3): 388 (2010)

Distribution: Mexico (Oaxaca)

79 MEX

species :

Ageratina havanensis (Kunth) R.M.King & H.Rob.; Phytologia 19: 222 (1970)

Name: Havana snakeroot

Distribution: USA (Texas); Mexico (Chihuahua, Coahuila, Guanajuato, Hidalgo, Nuevo Leon, Queretaro, San Luis Potosi, Tamaulipas, Veracruz); Bahamas; Cuba; Dominican Republic; Haiti

77 USA 79 MEX 81 BAH CUB HIS

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Bulbostylis deltoides Buckley; Proc. Acad. Nat. Sci. Philadelphia 13: 456 (1861)

= Eupatorium ageratifolium DC.; Prodr. [A. P. de Candolle] 5: 173 (1836)

= Eupatorium ageratifolium var. domingense DC.; Prodr. [A. P. de Candolle] 5: 173 (1836)

= Eupatorium ageratifolium var. mexicanum DC.; Prodr. [A. P. de Candolle] 5: 173 (1836)

= Eupatorium ageratifolium var. texense Torr. & A.Gray; Fl. N. Amer. 2: 90 (1841)

= Eupatorium ageratoides Bertero ex DC.; Prodr. [A. P. de Candolle] 5: 173 (1836) (nom. nud.)

= Eupatorium berlandieri DC.; Prodr. [A. P. de Candolle] 5: 167 (1836)

= Eupatorium havanense Kunth; Nov. Gen. Sp. [H.B.K.], ed. fol. 4: 100 (1818)

= Eupatorium havanense var. cardiomorphum B.L.Rob.; Contr. Gray Herb. 77: 16 (1926)

= Eupatorium havanense var. domingense B.L.Rob.; Proc. Amer. Acad. Arts 51: 534 (1916)

= Eupatorium havanense var. pubinerve B.L.Rob.; Contr. Gray Herb. 77: 16 (1926)

= Eupatorium leiophyllum Less.; Linnaea 6: 402 (1831)

= Eupatorium lindheimerianum Scheele; Linnaea 21: 599 (1848)

= Eupatorium papantlense Less.; Linnaea 6. 403 (1831)

= Eupatorium texense (Torr. & A.Gray) Rydb.; Fl. Colorado 335 (1906)

= Kyrstenia ageratifolia (DC.) Greene; Leafl. Bot. Observ. Crit. 1: 9. (1903)

species :

Ageratina hederifolia (A.Gray) R.M.King & H.Rob.; Phytologia 19: 222 (1970)

Distribution: Mexico (Chihuahua, Coahuila, Durango, Sinaloa)

79 MEX

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium hederifolium A.Gray; Pl. Fendler. 65 (1848)

species :

Ageratina helenae R.M.King & H.Rob.; Phytologia 24: 90 (1972)

Distribution: Mexico (Chiapas); Guatemala; El Salvador

79 MEX 80 ELS GUA

Remarks: Subgen. Ageratina

Synonyms: hidden

= Ageratina reserva B.L.Turner; Phytologia 94(2): 232 (2012)

species :

Ageratina henzium B.L.Turner; Phytologia 69(5): 340 (1990)

Distribution: Mexico (Durango, Sinaloa)

79 MEX

species :

Ageratina herbacea (A.Gray) R.M.King & H.Rob.; Phytologia 19: 222 (1970)

Name: Fragrant snakeroot

Distribution: USA (Arizona, California, Colorado, Nevada, New Mexico, Texas, Utah); Mexico (Baja California Norte, Chihuahua, Coahuila, Nuevo Leon, Queretaro, Sonora)

73 USA 76 USA 77 USA 79 MEX

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Ageratina betulifolia (Greene) R.M.King & H.Rob.; Phytologia 19: 219 (1970)

= Ageratina prionobia (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 225 (1970)

= Eupatorium ageratifolium var. herbaceum A.Gray; Smithsonian Contr. Knowl. 5(6): 74 (1853)

= Eupatorium arizonicum (A.Gray) Greene; Pittonia 4: 280 (1901)

= Eupatorium arizonicum (A.Gray) Nelson; Bot. Gaz. (Crawfordsville) 53: 226., isonym (1912)

= Eupatorium betulifolium (Greene) B.L.Rob.; Proc. Amer. Acad. Arts 43: 29 (1907)

= Eupatorium herbaceum (A.Gray) Greene; Pittonia 4: 279 (1901)

= Eupatorium occidentale var. arizonicum A.Gray; Syn. Fl. N. Amer. 1: 101 (1886)

= Eupatorium prionobium B.L.Rob.; Proc. Amer. Acad. Arts 36: 483 (1901)

= Kyrstenia arizonica (A.Gray) Greene; Leafl. Bot. Observ. Crit. 1: 9. (1903)

= Kyrstenia betulifolia Greene; Leafl. Bot. Observ. Crit. 1: 10 (1903)

= Kyrstenia herbacea (A.Gray) Greene; Leafl. Bot. Observ. Crit. 1: 9. (1903)

species :

Ageratina hernandezii B.L.Turner; Phytologia 64(1): 17 (1987)

Distribution: Mexico (Coahuila, Nuevo Leon, Tamaulipas)

79 MEX

species :

Ageratina hidalgensis (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 222 (1970)

Distribution: Mexico (Guanajuato, Hidalgo, Nuevo Leon, Queretaro, San Luis Potosi, Tamaulipas, Tlaxcala, Veracruz)

79 MEX

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium hidalgense B.L.Rob.; Contr. Gray Herb. 75: 8. (1925)

species :

Ageratina hirtella R.M.King & H.Rob.; Phytologia 69(2): 69 (1990)

Distribution: Costa Rica

80 COS

species :

Ageratina huahuapana Turner; Phytologia 92(3): 389 (2010)

Distribution: Mexico (Oaxaca)

79 MEX

species :

Ageratina huehueteca (Standl. & Steyerm.) R.M.King & H.Rob.; Phytologia 69(2): 61 (1990)

Distribution: Guatemala

80 GUA

Synonyms: hidden

= Eupatorium huehuetecum Standl. & Steyerm.; Publ. Field Mus. Nat. Hist.

species :

Ageratina humochica B.L.Turner; Phytologia 89(2): 193 (2007)

Distribution: Mexico (Oaxaca)

79 MEX

species :

Ageratina hyssopina (A.Gray) R.M.King & H.Rob.; Phytologia 19: 222 (1970)

Distribution: Mexico (Chihuahua, Coahuila, Durango, Nuevo Leon, San Luis Potosi, Sinaloa, Sonora, Zacatecas)

79 MEX

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium hyssopinum A.Gray; Proc. Amer. Acad. Arts 15: 28 (1880)

= Eupatorium koelliifolium Greene; Pittonia 3: 31 (1896)

= Kyrstenia koelliifolia (Greene) Greene; Leafl. Bot. Observ. Crit. 1: 9. (1903)

species :

Ageratina ibaguensis (Sch.Bip. ex Hieron.) R.M.King & H.Rob.; Phytologia 19: 214 (1970)

Distribution: Colombia (Caldas, Cauca, Huila, Quindío, Santander)

82 CLM

Synonyms: hidden

= Eupatorium ibaguense Sch.Bip. ex Hieron.; Urb., Bot. Jahrb. Syst. 40: 384 (1908)

= Eupatorium ibaquense var. indiscretum Maguire, Steyerm. & Wurdack; Mem. New York Bot. Gard. 9: 425 (1957)

= Eupatorium junquitense V.M.Badillo; Bol. Soc. Venez. Ci. Nat. 10: 291 (1946)

= Eupatorium sillense Hieron.; Urb., Bot. Jahrb. Syst. 40: 382 (1908)

species :

Ageratina ilicifolia B.L.Turner; Phytologia 71(4): 311 (1991)

Distribution: Mexico (Nuevo Leon)

79 MEX

species :

Ageratina illita (Urb.) R.M.King & H.Rob.; Phytologia 19: 222 (1970)

Distribution: Dominican Republic; Haiti

81 HIS

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium illitum Urb.; Symb. Antill. 3: 401 (1901)

species :

Ageratina iltisii B.L.Turner; Phytologia 94(2): 229 (2012)

Distribution: Mexico (Colima, Jalisco)

79 MEX

species :

Ageratina infiernillensis R.M.King & H.Rob.; Phytologia 24: 91 (1972)

Distribution: Peru

83 PER

Remarks: Subgen. Ageratina

species :

Ageratina intercostulata (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 223 (1970)

Distribution: Colombia (Chocó)

82 CLM

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium intercostulatum B.L.Rob.; Proc. Amer. Acad. Arts 54: 247 (1918)

species :

Ageratina intibucensis R.M.King & H.Rob.; Phytologia 38: 337 (1978)

Distribution: El Salvador; Honduras

80 ELS HON

Remarks: Subgen. Neogreenella

species :

Ageratina irrasa (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 223 (1970)

Distribution: Mexico (Hidalgo, México State, Oaxaca, Puebla, Tlaxcala, Veracruz)

79 MEX

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium calaminthifolium var. irrasum B.L.Rob.; Contr. Gray Herb. 68: 11 (1923)

= Eupatorium irrasum (B.L.Rob.) B.L.Rob.; Contr. Gray Herb. 75: 8. (1925)

species :

Ageratina isolepis (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 223 (1970)

Distribution: Mexico (Colima, Ciudad de Mexico, Guanajuato, Guerrero, Jalisco, México State, Michoacan, Oaxaca, Queretaro, San Luis Potosi, Tamaulipas, Zacatecas)

79 MEX

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium isolepis B.L.Rob.; Proc. Amer. Acad. Arts 43: 33 (1907)

species :

Ageratina jahnii (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 223 (1970)

Distribution: Venezuela (Merida, Tachira)

82 VEN

Remarks: Subgen. Andinia

Synonyms: hidden

= Ageratina stevioides (Steyerm.) R.M.King & H.Rob.; Phytologia 19: 226 (1970)

= Eupatorium jahnii B.L.Rob.; Proc. Amer. Acad. Arts 54: 248 (1918)

= Eupatorium stevioides Steyerm.; Fieldiana, Bot. 28(3): 637 (1953)

species :

Ageratina jaliscensis (B.L.Rob.) D.Gage ex B.L.Turner; Phytologia Mem. 11: 31 (1997)

Distribution: Mexico (Colima, Jalisco, Nayarit)

79 MEX

Synonyms: hidden

= Piptothrix jaliscensis B.L.Rob.; Proc. Boston Soc. Nat. Hist. 31: 268 (1904)

species :

Ageratina jalpana B.L.Turner; Phytologia 81(5): 343 (1996 publ. 1997)

Distribution: Mexico (Jalisco, Zacatecas)

79 MEX

species :

Ageratina jalpanserra B.L.Turner; Phytologia 96(1): 13 (2014)

Distribution: Mexico (Queretaro)

79 MEX

Synonyms: hidden

= Ageratina jalpana B.L.Turner; Phytologia 96: 13 (2014), nom. illeg., non B. L. Turner 1997

species :

Ageratina jocotepecana B.L.Turner; Phytologia 80(2): 128 (1996)

Distribution: Mexico (Jalisco)

79 MEX

species :

Ageratina josepaneroi B.L.Turner; Phytologia 81(5): 344 (1996 publ. 1997)

Distribution: Mexico (Guerrero)

79 MEX

species :

Ageratina josephensis Rodr.-Cabeza & S.Díaz; Revista Acad. Colomb. Ci. Exact. 36(141): 507 (2012)

Distribution: Colombia (Norte de Santander)

82 CLM

species :

Ageratina jucunda (Greene) Clewell & Wooton; Brittonia 23: 142 (1971)

Name: Hammock snakeroot

Distribution: USA (Florida, Georgia)

78 USA

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium incisum Chapm.; Fl. S. U.S., ed. 3: 216 (1897), nom. illeg.

= Eupatorium jucundum Greene; Pittonia 3: 180 (1897), not E. incisum Richard 1792

= Eupatorium suaveolens Chapm.; Bot. Gaz. (Crawfordsville) 3: 5. (1878)

= Kyrstenia jucunda (Greene) Greene; Leafl. Bot. Observ. Crit. 1: 8. (1903)

species :

Ageratina juxtlahuacensis Panero & Villaseñor; Lundellia 1: 72 (1998)

Distribution: Mexico (Guerrero, Oaxaca)

79 MEX

species :

Ageratina killipii H.Rob.; Phytologia 88(2): 160 (2006)

Distribution: Colombia (Norte de Santander)

82 CLM

species :

Ageratina kochiana B.L.Turner; Phytologia 73(4): 305 (1992)

Distribution: Mexico (Oaxaca)

79 MEX

species :

Ageratina kupperi (Suess.) R.M.King & H.Rob.; Phytologia 19: 223 (1970)

Distribution: Costa Rica; Panama

80 COS PAN

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium kupperi Suess.; Bot. Jahrb. Syst. 72: 288 (1942)

species :

Ageratina lapsensis B.L.Turner; Phytologia 91(3): 439 (2009), nom. nov.

Distribution: Mexico (Oaxaca)

79 MEX

Synonyms: hidden

= Ageratina pochutlana B.L.Turner; Phytologia 90(3): 359 (-360

species :

Ageratina lasia (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 223 (1970)

Distribution: Mexico (Guerrero, Michoacan)

79 MEX

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium lasium B.L.Rob.; Contr. Gray Herb. 68: 21 (1923)

species :

Ageratina lasioneura (Hook. & Arn.) R.M.King & H.Rob.; Phytologia 24: 92 (1972)

Distribution: Mexico (Chihuahua, Colima, Ciudad de Mexico, Durango, Jalisco, México State, Michoacan, Morelos, Nayarit, Sinaloa, Zacatecas)

79 MEX

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Ageratina chapalensis (S.Watson) R.M.King & H.Rob.; Phytologia 19: 220 (1970)

= Eupatorium chapalense S.Watson; Proc. Amer. Acad. Arts 26: 138 (1891)

= Eupatorium lasioneuron Hook. & Arn.; Bot. Beechey Voy. 297 (1838)

species :

Ageratina latipes (Benth.) R.M.King & H.Rob.; PhytoIogia 37: 455 (1977)

Distribution: Colombia (Boyacá, Cundinamarca, Norte de Santander, Santander)

82 CLM

Remarks: Subgen. Andinia

Synonyms: hidden

= Eupatorium latipes Benth.; Pl. Hartw. [Bentham] 200 (1845)

species :

Ageratina laurae Aguilar-Cano & F.Ávila; Revista Acad. Colomb. Ci. Exact. 48(188): 540 (2024)

Distribution: Colombia

82 CLM

species :

Ageratina leiocarpa (B.L.Rob.) D.Gage ex B.L.Turner; Phytologia Mem. 11: 32 (1997)

Distribution: Mexico (México State, Morelos, Guerrero)

79 MEX

Synonyms: hidden

= Eupatorium areolare var. leiocarpum B.L.Rob.; Proc. Amer. Acad. Arts 35: 330 (1900)

species :

Ageratina lemmonii (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 223 (1970)

Name: Lemmon´s snakeroot

Distribution: USA (Arizona); Mexico (Chihuahua, Durango, Sinaloa, Sonora)

76 USA 79 MEX

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium euonymifolium Greene; Pittonia 3: 31 (1896)

= Eupatorium lemmonii B.L.Rob.; Proc. Amer. Acad. Arts 27: 171 (1892)

= Kyrstenia euonymifolia (Greene) Greene; Leafl. Bot. Observ. Crit. 1: 9. (1903)

species :

Ageratina leptodictyon (A.Gray) R.M.King & H.Rob.; Phytologia 19: 223 (1970)

Distribution: Mexico (Colima, Durango, Jalisco, Nayarit, Zacatecas)

79 MEX

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Ageratina pachypoda (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 224 (1970)

= Eupatorium leptodictyon A.Gray; S. Watson, Proc. Amer. Acad. Arts 22: 420 (1887)

= Eupatorium pachypodium B.L.Rob.; Proc. Amer. Acad. Arts 36: 481 (1901)

species :

Ageratina liebmannii (Sch.Bip. ex Klatt) R.M.King & H.Rob.; Phytologia 19: 223 (1970)

Distribution: Mexico (Guerrero, México State, Morelos, Oaxaca, Puebla)

79 MEX

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium hirsutum DC.; Prodr. [A. P. de Candolle] 5: 170 (1836)

= Eupatorium liebmannii Sch.Bip. ex Klatt; Leopoldina 20: 75 (1884)

= Eupatorium pseudohirsutum Hieron.; Bot. Jahrb. Syst. 22: 758., nom. nov. (1897)

= Eupatorium rugosum f. verticillatum (Vict.) Scoggan; Fl. Canada 1: 51 (1978)

= Eupatorium rugosum Schrad. ex DC.; Prodr. [A. P. de Candolle] 5: 174 (1836)

= Eupatorium schraderi DC.; Prodr. [A. P. de Candolle] 5: 174 (1836)

species :

Ageratina ligustrina (DC.) R.M.King & H.Rob.; Phytologia 19: 223 (1970)

Distribution: India [I] (West Bengal [I], Uttar Pradesh [I], Darjeeling [I]); Australia [I] (Victoria [I]); Mexico (Chiapas, Coahuila, Guanajuato, Guerrero, Hidalgo, Jalisco, México State, Michoacan, Nayarit, Nuevo Leon, Oaxaca, Puebla, Queretaro, San Luis Potosi, Tamaulipas, Veracruz, Zacatecas); Guatemala; El Salvador; Honduras; Costa Rica

40 ind 50 aus 79 MEX 80 COS ELS GUA HON

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Ageratina plethadenia (Standl. & Steyerm.) R.M.King & H.Rob.; Phytologia 24: 95 (1972)

= Ageratum glaucum Sieber & Voss; Vilm. Blumengaert., ed. 3, 1: 448 (1896), nom. nud.

= Eupatorium biceps Klotzsch ex Vatke; Bot. Zeitung (Berlin) 30: 719 (1872)

= Eupatorium erythropappum B.L.Rob.; Proc. Boston Soc. Nat. Hist. 31: 248 (1904)

= Eupatorium glabellum Sieber & Voss; Blumengärtner 1: 448 (1894), nom. nud.

= Eupatorium ligustrinum DC.; Prodr. [A. P. de Candolle] 5: 181 (1836)

= Eupatorium ligustrinum f. weinmannianum (Regel & Körn.) Voss; Vilm. Blumengärtn. ed. 3. 1: 448 (1894)

= Eupatorium micranthum Less.; Linnaea 5: 138 (1830)

= Eupatorium myriadenium S.Schauer; Linnaea 19: 721 (1847)

= Eupatorium odoratissimum Sieber & Voss; Vilm. Blumengaert., ed. 3, 1: 448 (1894), nom. nud.

= Eupatorium plethadenium Standl. & Steyerm.; Publ. Field Mus. Nat. Hist.

= Eupatorium popocatapetlense Schltdl. ex Hemsl.; Biol. Cent.-Amer., Bot. 2: 99 (1881), nom. nud.

= Eupatorium semialatum Benth.; Pl. Hartw. [Bentham] 76 (1841)

= Eupatorium weinmannianum Regel & Körn.; Ind. Sem. Hort. Petrop. 41 (1857)

species :

Ageratina lobulifera (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 214 (1970)

Distribution: Peru

83 PER

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium lobuliferum B.L.Rob.; Contr. Gray Herb. 77: 24 (1926)

species :

Ageratina lopez-mirandae R.M.King & H.Rob.; Phytologia 38: 331 (1978)

Distribution: Peru

83 PER

Remarks: Subgen. Andinia

species :

Ageratina lorentzii (Hieron.) R.M.King & H.Rob.; Phytologia 19: 215 (1970)

Distribution: Bolivia (Tarija); Argentina (Catamarca, Jujuy, La Rioja, Salta, Tucuman)

83 BOL 85 ARG

Remarks: Subgen. Ageratina

Synonyms: hidden

= Ageratina calderillensis (Hieron.) R.M.King & H.Rob.; Phytologia 19: 213 (1970)

= Eupatorium calderillense Hieron.; Urb., Bot. Jahrb. Syst. 40: 381 (1908)

= Eupatorium lorentzii Hieron.; Bot. Jahrb. Syst. 22: 787 (1897)

species :

Ageratina luciae-brauniae (Fernald) R.M.King & H.Rob.; Phytologia 19: 215 (1970)

Name: Rockhouse white snakeroot

Distribution: USA (Kentucky, Tennessee)

78 USA

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium deltoides E.L.Braun; Rhodora 42: 50 (1940)

= Eupatorium luciae-brauniae Fernald; Rhodora 44: 463 (1942), not Jacq. 1798

species :

Ageratina lucida (Ortega) R.M.King & H.Rob.; Phytologia 19: 224 (1970)

Distribution: Mexico (Chiapas, Ciudad de Mexico, Guerrero, Hidalgo, México State, Morelos, Oaxaca, Puebla, Tlaxcala, Veracruz)

79 MEX

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Ageratina adenachaenia (Sch.Bip. ex Klatt) R.M.King & H.Rob.; Phytologia 19: 219 (1970)

= Eupatorium adenachaenium Sch.Bip. ex Klatt; Leopoldina 20: 75 (1884)

= Eupatorium adenochaetum Sch.Bip. ex Hemsl.; Biol. Cent. Amer., Bot. 2: 91 (1881), nom. nud.

= Eupatorium capnoresbium B.L.Rob.; Proc. Amer. Acad. Arts 35: 331 (1900)

= Eupatorium lucidum Ortega; Nov. Pl. Descr. Dec. 35 (1797)

= Eupatorium morisii Vis.; Orto Bot. Padova: 80 (1842)

species :

Ageratina macbridei (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 224 (1970)

Distribution: Ecuador; Peru

83 ECU PER

Remarks: Subgen. Andinia

Synonyms: hidden

= Eupatorium macbridei B.L.Rob.; Contr. Gray Herb. 68: 23 (1923)

species :

Ageratina macdonaldii B.L.Turner; Phytologia 68(3): 165 (1990)

Distribution: Mexico (Oaxaca)

79 MEX

species :

Ageratina macvaughii R.M.King & H.Rob.; Phytologia 38: 335 (1978)

Distribution: Mexico (Guerrero, México State, Michoacan, Puebla)

79 MEX

Remarks: Subgen. Neogreenella

species :

Ageratina mairetiana (DC.) R.M.King & H.Rob.; Phytologia 19: 224 (1970)

Distribution: Mexico (Aguascalientes, Chiapas, Colima, Ciudad de Mexico, Durango, Guanajuato, Guerrero, Hidalgo, Jalisco, México State, Michoacan, Morelos, Nayarit, Oaxaca, Puebla, Queretaro, San Luis Potosi, Sinaloa, Tamaulipas, Tlaxcala, Veracruz, Zacatecas); Guatemala; El Salvador

79 MEX 80 ELS GUA

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Ageratina rafaelensis (J.M.Coult.) R.M.King & H.Rob.; Phytologia 19: 225 (1970)

= Eupatorium cognatum Kunth & C.D.Bouché; Index Seminum hort. Berol. 1847: 13 (1847)

= Eupatorium mairetianum DC.; Prodr. [A. P. de Candolle] 5: 167 (1836)

= Eupatorium mairetianum var. adenopodum B.L.Rob.; Proc. Amer. Acad. Arts 51: 534 (1916)

= Eupatorium rafaelense J.M.Coult.; Bot. Gaz. 16: 97 (1891)

variant :

var. elucens (McVaugh) B.L.Turner; Phytologia 63: 424 (1987)

Distribution: Mexico (Sinaloa, Durango, ?Nayarit, Jalisco)

79 MEX

Synonyms: hidden

= Ageratina multiserrata (Sch.Bip.) R.M.King & H.Rob.; Phytologia 24: 94 (1972)

= Eupatorium mairetianum f. elucens McVaugh; Contr. Univ. Michigan Herb. 9: 399 (1972)

= Eupatorium multiserratum Sch.Bip.; Bot. Voy. Herald 301 (1856)

species :

Ageratina malacolepis (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 215 (1970)

Distribution: Mexico (Aguascalientes, Chiapas, Chihuahua, Colima, Durango, Guerrero, Jalisco, México State, Michoacan, Nayarit, Oaxaca, Sinaloa, Sonora, Zacatecas)

79 MEX

Remarks: Subgen. Ageratina

Synonyms: hidden

= Ageratina xanthochlora (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 218 (1970)

= Eupatorium malacolepis B.L.Rob.; Proc. Amer. Acad. Arts 44: 618 (1909)

= Eupatorium xanthochlorum B.L.Rob.; Contr. Gray Herb. 77: 44 (1926)

species :

Ageratina manantlana B.L.Turner; Phytologia 64(4): 269 (1988)

Distribution: Mexico (Colima, Jalisco)

79 MEX

species :

Ageratina maranonii H.Rob.; Proc. Biol. Soc. Washington 116(1): 237 (2003)

Distribution: Peru

83 PER

species :

Ageratina markporteri B.L.Turner; Phytologia 94(3): 456 (2012)

Distribution: Mexico (Oaxaca)

79 MEX

species :

Ageratina mayajana B.L.Turner; Lundellia 9: 1 (2006)

Distribution: Mexico (Oaxaca)

79 MEX

species :

Ageratina mazatecana B.L.Turner; Lundellia 9: 3 (2006)

Distribution: Mexico (Oaxaca)

79 MEX

species :

Ageratina megacephala B.L.Turner; Phytologia 92(3): 391 (2010)

Distribution: Mexico (Oaxaca)

79 MEX

species :

Ageratina megaphylla B.L.Turner; Phytologia 95(2): 142, fig. 3, map 1 (2013)

Distribution: Mexico (Oaxaca)

79 MEX

species :

Ageratina miahuatlana B.L.Turner; Phytologia 79(4): 310 (1995 publ. 1996)

Distribution: Mexico (Oaxaca)

79 MEX

species :

Ageratina microcephala B.L.Turner; Phytologia 94(2): 230 (2012)

Distribution: Mexico (Guerrero, Oaxaca)

79 MEX

species :

Ageratina miquihuana (B.L.Turner) R.M.King & H.Rob.; Phytologia 37: 455 (1977)

Distribution: Mexico (Coahuila, Tamaulipas)

79 MEX

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium miquihuanum B.L.Turner; Wrightia 5: 352 (1977)

species :

Ageratina molinae R.M.King & H.Rob.; Phytologia 24: 93 (1972)

Distribution: Guatemala; El Salvador; Honduras; Costa Rica; Panama

80 COS ELS GUA HON PAN

Remarks: Subgen. Ageratina

species :

Ageratina moorei B.L.Turner; Phytologia 68(2): 95 (1990)

Distribution: Mexico (México State, Michoacan)

79 MEX

species :

Ageratina mortoniana (Alain) R.M.King & H.Rob.; Phytologia 19: 224 (1970)

Distribution: Cuba

81 CUB

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium ×mortonianum Alain; Contr. Ocas. Mus. Hist. Nat. Colegio "De La Salle" 18: 8. (1960)

species :

Ageratina muelleri (Sch.Bip. ex Klatt) R.M.King & H.Rob.; Phytologia 19: 215 (1970)

Distribution: Mexico (Chiapas, Colima, Guanajuato, Guerrero, Hidalgo, Jalisco, México State, Michoacan, Morelos, Nayarit, Oaxaca, Queretaro, San Luis Potosi, Sinaloa, Veracruz, Zacatecas); Guatemala; Honduras

79 MEX 80 GUA HON

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium muelleri Sch.Bip. ex Klatt; Leopoldina 20: 90 (1884)

= Mallinoa corymbosa J.M.Coult.; Bot. Gaz. (Crawfordsville) 20: 47 (1895)

species :

Ageratina mutiscuensis (B.L.Rob.) R.M.King & H.Rob.; Phytologia 24: 94 (1972)

Distribution: Colombia (Boyacá, Norte de Santander)

82 CLM

Remarks: Subgen. Andinia

Synonyms: hidden

= Eupatorium mutiscuense B.L.Rob.; Contr. Gray Herb. 80: 25 (1928)

species :

Ageratina neblinensis J.Montoya, E.Linares, Torres Marq., Vicente Orell. & A.Galán; Gayana, Bot. 74(2): 288 (2017)

Distribution: Peru

83 PER

species :

Ageratina neohintoniorum B.L.Turner; Phytologia 64(1): 18 (1987)

Distribution: Mexico (México State, Michoacan, Oaxaca)

79 MEX

species :

Ageratina neriifolia (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 224 (1970)

Distribution: Venezuela (Aragua, Venezuela Distrito Federal, Lara, Merida, Tachira, Trujillo, Yaracuy)

82 VEN

Remarks: Subgen. Andinia

Synonyms: hidden

= Eupatorium leucomyelum B.L.Rob.; Contr. Gray Herb. 68: 22 (1923)

= Eupatorium neriifolium B.L.Rob.; Contr. Gray Herb. 65: 49 (1922)

species :

Ageratina nesomii B.L.Turner; Phytologia 53: 241 (1983)

Distribution: Mexico (Coahuila, Nuevo Leon, Tamaulipas)

79 MEX

Remarks: Subgen. Ageratina

Synonyms: hidden

= Ageratina rollinsii B.L.Turner; Phytologia 53: 242 (1983)

species :

Ageratina nubicola Pruski & Clase; Phytoneuron 2012-32: 1 (2012)

Distribution: Dominican Republic

81 HIS

species :

Ageratina oaxacana (Klatt) R.M.King & H.Rob.; Phytologia 32: 284 (1975)

Distribution: Mexico (Chiapas, Guerrero, Oaxaca)

79 MEX

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Ageratina breedlovei R.M.King & H.Rob.; Phytologia 58: 259 (1985)

= Eupatorium oaxacanum Klatt; Abh. Naturf. Ges. Halle 15: 324 (1882)

species :

Ageratina ocanensis (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 224 (1970)

Distribution: Colombia (Boyacá, Cesar, Magdalena, Norte de Santander)

82 CLM

Remarks: Subgen. Andinia

Synonyms: hidden

= Eupatorium ocanense B.L.Rob.; Contr. Gray Herb. 68: 27 (1923)

species :

Ageratina occidentalis (Hook.) R.M.King & H.Rob.; Phytologia 19: 224 (1970)

Name: Western snakeroot

Distribution: USA (California, Idaho, Montana, Nevada, Oregon, Utah, Washington)

73 USA 76 USA

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium berlandieri A.Gray; Rep. U. S. Mex. Bound., Bot. 76 (1819)

= Eupatorium occidentale Hook.; Fl. Bor. Am. 1: 305 (1833)

= Eupatorium occidentale var. decemplex A.Nelson; Bot. Gaz. 53: 226 (1912)

= Eupatorium occidentale var. subroseum DC.; Prodr. [A. P. de Candolle] 5: 176 (1836)

= Eupatorium oregonum Nutt.; Trans. Amer. Philos. Soc. 7: 286 (1841)

= Kyrstenia occidentalis (Hook.) Greene; Leafl. Bot. Observ. Crit. 1: 9. (1903)

species :

Ageratina oligocephala (DC.) R.M.King & H.Rob.; Phytologia 19: 215 (1970)

Distribution: Mexico (Aguascalientes, Chihuahua, Coahuila, Colima, Ciudad de Mexico, Durango, Guanajuato, Guerrero, Hidalgo, Jalisco, México State, Michoacan, Morelos, Nayarit, Nuevo Leon, Oaxaca, Puebla, Queretaro, San Luis Potosi, Sonora, Tamaulipas, Tlaxcala, Veracruz, Zacatecas)

79 MEX

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium erythrocomum B.L.Rob.; Proc. Amer. Acad. Arts 43: 31 (1907)

= Eupatorium oligocephalum DC.; Prodr. [A. P. de Candolle] 5: 166 (1836)

= Eupatorium schaffneri Sch.Bip. ex Hemsl.; Biol. Cent.-Amer., Bot. 2: 100 (1881)

species :

Ageratina oppositifolia (A.Gray) B.L.Turner; Phytologia 63: 5 (1987)

Distribution: Mexico (San Luis Potosi, Zacatecas)

79 MEX

Synonyms: hidden

= Ageratina mygindifolia (A.Gray) R.M.King & H.Rob.; Phytologia 19: 224 (1970)

= Bigelowia oppositifolia A.Gray; Proc. Amer. Acad. Arts 15: 32 (1880)

= Eupatorium mygindifolium A.Gray; Proc. Amer. Acad. Arts 16: 101 (1880)

= Haplopappus oppositifolius (A.Gray) S.F.Blake; Contr. U. S. Natl. Herb. 23: 1489 (1926)

species :

Ageratina oreithales (Greenm.) B.L.Turner; Phytologia 64: 19 (1987)

Distribution: Mexico (Coahuila, Ciudad de Mexico, Guerrero, Hidalgo, México State, Michoacan, Morelos, Nuevo Leon, Puebla, Queretaro, San Luis Potosi, Tamaulipas, Veracruz); ?Guatemala

79 MEX

Remarks: treated by Flora Mesoamericana as synonym of A. prunellifolia

Synonyms: hidden

= Eupatorium nubivagum L.O.Williams; Fieldiana, Bot. 36: 94(96). (1975)

= Eupatorium oreithales Greenm.; Proc. Amer. Acad. Arts 32: 308 (1897)

= Kyrstenia oreithales (Greenm.) Greene; Leafl. Bot. Observ. Crit. 1: 9. (1903)

species :

Ageratina ovilla (Standl. & Steyerm.) R.M.King & H.Rob.; Phytologia 19: 224 (1970)

Distribution: Mexico (Oaxaca, Chiapas); Guatemala

79 MEX 80 GUA

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium ovilla Standl. & Steyerm.; Publ. Field Mus. Nat. Hist., Bot. Ser. 22: 305 (1940)

species :

Ageratina ozolotepecana B.L.Turner; Phytologia 92(3): 392 (2010)

Distribution: Mexico (Oaxaca)

79 MEX

species :

Ageratina palmeri (A.Gray) B.L.Turner; Phytologia Mem. 11: 38 (1997)

Distribution: Mexico (Aguascalientes, Chihuahua, Durango, Jalisco, Nayarit, Nuevo Leon, Sinaloa, Sonora, Zacatecas)

79 MEX

Synonyms: hidden

= Piptothrix palmeri A.Gray; Proc. Amer. Acad. Arts 21: 383 (1886)

= Piptothrix pubens A.Gray; S. Watson

= Piptothrix sinaloae S.F.Blake; Proc. Biol. Sec. Wash. 32: 190 (1919)

species :

Ageratina pampalcensis (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 215 (1970)

Distribution: Peru

83 PER

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium pampalcense B.L.Rob.; Contr. Gray Herb. 104: 24 (1934)

species :

Ageratina paramensis (Aristeg.) R.M.King & H.Rob.; Phytologia 19: 224 (1970)

Distribution: Venezuela (Merida, Tachira)

82 VEN

Remarks: Subgen. Andinia

Synonyms: hidden

= Eupatorium paramense Aristeg.; Fl. Venezuela 10: 171 (1964)

species :

Ageratina parayana (Espinosa) B.L.Turner; Phytologia 64: 19 (1987)

Distribution: Mexico (Ciudad de Mexico, Guerrero, México State, Michoacan, Oaxaca)

79 MEX

Synonyms: hidden

= Eupatorium parayanum Espinosa; (1984)

species :

Ageratina parviceps H.Rob.; Proc. Biol. Soc. Washington 116(1): 240 (2003)

Distribution: Ecuador

83 ECU

species :

Ageratina paucibracteata (Alain) R.M.King & H.Rob.; Phytologia 19: 218 (1970)

Distribution: Cuba

81 CUB

Remarks: Subgen. Klattiella

Synonyms: hidden

= Eupatorium paucibracteatum Alain; Contr. Ocas. Mus. Hist. Nat. Colegio "De La Salle" 18: 8 (1960)

species :

Ageratina pauciflora B.L.Turner; Phytologia 95(2): 142, fig. 4, map 4 (2013)

Distribution: Mexico (Oaxaca)

79 MEX

species :

Ageratina paupercula (A.Gray) R.M.King & H.Rob.; Phytologia 19: 215 (1970)

Name: Santa Rita snakeroot

Distribution: USA (Arizona); Mexico (Chihuahua, Coahuila, Colima, Durango, Jalisco, Nayarit, Sonora)

76 USA 79 MEX

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium pauperculum A.Gray; Proc. Amer. Acad. Arts 17: 205 (1882)

= Kyrstenia paupercula (A.Gray) Greene; Leafl. Bot. Observ. Crit. 1: 9. (1903)

= Piptothrix arizonica Nelson; Amer. J. Bot. 25: 117 (1938)

species :

Ageratina pazcuarensis (Kunth) R.M.King & H.Rob.; Phytologia 19: 215 (1970)

Distribution: Mexico (Baja California Sur, Chiapas, Chihuahua, Coahuila, Colima, Ciudad de Mexico, Durango, Guanajuato, Guerrero, Hidalgo, Jalisco, México State, Michoacan, Morelos, Nayarit, Nuevo Leon, Oaxaca, Puebla, Queretaro, San Luis Potosi, Sinaloa, Sonora, Tamaulipas, Tlaxcala, Veracruz, Zacatecas); Guatemala; Honduras

79 MEX 80 GUA HON

Remarks: Subgen. Ageratina

Synonyms: hidden

= Ageratina grandidentata (DC.) R.M.King & H.Rob.; Phytologia 19: 214 (1970)

= Ageratina haageana (Regel & Kom.) H.Rob.; Phytologia 84(5): 347 (1998 publ. 1999)

= Eupatorium fraseri Anon.; Bull. Misc. Inform. Kew 3: 40 (1889)

= Eupatorium grandidentatum DC.; Prodr. [A. P. de Candolle] 5: 167 (1836)

= Eupatorium haageanum Regel & Körn.; Index Seminum [St. Petersburg (Petropolitanus)] 40 (1857)

= Eupatorium pazcuarense Kunth; Nov. Gen. Sp. [H.B.K.], ed. fol. 4: 96 (1818)

= Kyrstenia grandidentata (DC.) Greene; Leafl. Bot. Observ. Crit. 1: 9. (1903)

= Kyrstenia pazcuarensis (Kunth) Greene; Leafl. Bot. Observ. Crit. 1: 9. (1903)

species :

Ageratina pelotropha (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 224 (1970)

Distribution: Mexico (Guerrero, Michoacan)

79 MEX

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium pelotrophum B.L.Rob.; Proc. Amer. Acad. Arts 42: 44 (1906)

species :

Ageratina pendula Panero & Villaseñor; Brittonia 48(4): 498 (1996 publ. 1997)

Distribution: Mexico (Oaxaca)

79 MEX

species :

Ageratina pentlandiana (DC.) R.M.King & H.Rob.; Phytologia 19: 225 (1970)

Distribution: Peru; Bolivia (La Paz)

83 BOL PER

Remarks: Subgen. Apoda

Synonyms: hidden

= Eupatorium incasicum Wedd.; Chlor. Andina 1: 217 (1857)

= Eupatorium pentlandianum DC.; Prodr. [A. P. de Candolle] 5: 157 (1836)

species :

Ageratina perezii B.L.Turner; Phytologia 67(2): 116 (1989)

Distribution: Mexico (México State, Morelos)

79 MEX

species :

Ageratina persetosa H.Rob.; Phytologia 88(2): 155 (2006)

Distribution: Colombia (Cesar)

82 CLM

species :

Ageratina petiolaris (Moc. & Sessé ex DC.) R.M.King & H.Rob.; Phytologia 19: 225 (1970)

Distribution: Mexico (Aguascalientes, Chihuahua, Chiapas, Coahuila, Ciudad de Mexico, Durango, Guanajuato, Guerrero, Hidalgo, Jalisco, México State, Michoacan, Morelos, Nuevo Leon, Oaxaca, Puebla, Queretaro, San Luis Potosi, Tamaulipas, Tlaxcala, Veracruz, Yucatan, Zacatecas)

79 MEX

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Bustamenta cordata Alamán ex DC.; Prodr. [A. P. de Candolle] 5: 166 (1836), nom. nud.

= Eupatorium petiolare Moc. & Sessé ex DC.; Prodr. [A. P. de Candolle] 5: 166 (1836)

species :

Ageratina photina (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 215 (1970)

Distribution: Mexico (Morelos)

79 MEX

Remarks: Subgen. Ageratina

Conservation Status: known from type only

Synonyms: hidden

= Eupatorium photinum B.L.Rob.; Proc. Amer. Acad. Arts 35: 338 (1900)

species :

Ageratina pichinchensis (Kunth) R.M.King & H.Rob.; Phytologia 19: 215 (1970)

Distribution: Mexico; Revillagigedos Isl. (Isla Socorro); Guatemala; El Salvador; Honduras; Nicaragua; Costa Rica; Panama; Colombia (Antioquia, Boyacá, Caldas, Cauca, Cesar, Cundinamarca, Huila, Magdalena, Nariño, Norte de Santander, Putumayo, Quindío, Risaralda, Tolima, Valle); Venezuela (Anzoategui, Aragua, Bolívar, Carabobo, Venezuela Distrito Federal, Guarico, Lara, Merida, Miranda, Monagas, Portuguesa, Tachira, Trujillo, Zulia); Ecuador; Peru

79 MEX RGI 80 COS ELS GUA HON NIC PAN 82 CLM VEN 83 ECU PER

Remarks: Subgen. Ageratina. There are significant delimitation problems between this species and A. bustamenta, which is sometimes completely included here.

Synonyms: hidden

= Ageratina articulata (Sch.Bip. ex Hieron.) R.M.King & H.Rob.; Phytologia 19: 212 (1970)

= Ageratina aschenborniana (S.Schauer) R.M.King & H.Rob.; Phytologia 19: 212 (1970)

= Ageratina ciliata (Less.) R.M.King & H.Rob.; Phytologia 19: 213 (1970)

= Ageratina pacifica (B.L.Rob. & I.M.Johnst.) R.M.King & H.Rob.; Phytologia 19: 215 (1970)

= Ageratina piurae (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 225 (1970)

= Ageratina vulcanica (Benth. ex Oerst.) R.M.King & H.Rob.; Phytologia 19: 218 (1970)

= Bustamenta ovata Mairet ex DC.; Pro&. 5: 168 (1836), nom. nud.

= Eupatorium articulatum Sch.Bip. ex Hieron.; Urb., Bot. Jahrb. Syst. 40: 385 (1908)

= Eupatorium aschenbornianum S.Schauer; Linnaea 19: 720 (1847)

= Eupatorium ciliatum Less.; Linnaea 6: 404 (1831)

= Eupatorium donnell-smithii var. parvifolium J.M.Coult.; Bot. Gaz. 16: 96 (1891)

= Eupatorium pacificum B.L.Rob. ex I.M.Johnst.; Proc. Calif. Acad. Sci., ser. 4, 20: 99 (1931)

= Eupatorium pichinchense Kunth; Nov. Gen. Sp. [H.B.K.], ed. fol. 4: 95 (1818)

= Eupatorium piurae B.L.Rob.; Contr. Gray Herb. 77: 28 (1926)

= Eupatorium ptaretepuiense V.M.Badillo; Bol. Soc. Venez. Ci. Nat. 10: 291 (1946)

= Eupatorium tequendamense var. glabratum Hieron.; Bot. Jahrb. Syst. 29: 6 (1900)

= Eupatorium tequendamense var. glandulosopubescens Hieron.; Bot. Jahrb. Syst. 29: 6 (1900)

= Eupatorium vulcanicum Benth. ex Oerst.; Vidensk. Meddel. Dansk Naturhist. Foren. Kjobenhavn 78 (1852)

= Kyrstenia ciliata (Less.) Greene; Leafl. Bot. Observ. Crit. 1: 9. (1903)

species :

Ageratina pochutlana B.L.Turner; Lundellia 9: 3 (fig. 3) (2006)

Distribution: Mexico (Oaxaca)

79 MEX

species :

Ageratina popayanensis (Hieron.) R.M.King & H.Rob.; Phytologia 19: 225 (1970)

Distribution: Colombia (Antioquia, Boyacá, Caldas, Cauca, Chocó, Cundinamarca, Meta, Quindío, Risaralda, Santander, Tolima, Valle)

82 CLM

Remarks: Subgen. Andinia

Synonyms: hidden

= Eupatorium popayanense Hieron.; Urb., Bot. Jahrb. Syst. 40: 373 (1908)

species :

Ageratina potosina B.L.Turner; Phytologia 64(1): 20 (1987)

Distribution: Mexico (Coahuila, Nuevo Leon, San Luis Potosi, Tamaulipas)

79 MEX

species :

Ageratina pringlei (B.L.Rob. & Greenm.) R.M.King & H.Rob.; Phytologia 19: 225 (1970)

Distribution: Mexico (Oaxaca, Chiapas); Guatemala; Honduras

79 MEX 80 GUA HON

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium pringlei B.L.Rob. & Greenm.; Amer. J. Sci. Arts, ser. 3, 50: 152 (1895)

species :

Ageratina proba (N.E.Br.) R.M.King & H.Rob.; Phytologia 37: 455 (1977)

Distribution: Peru

83 PER

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium probum N.E.Br.; Gard. Chron., ser. 3. 7: 321. Fig. 48 (1890)

species :

Ageratina prunellifolia (Kunth) R.M.King & H.Rob.; Phytologia 19: 215 (1970)

Distribution: Mexico (Chiapas, Coahuila, Colima, Ciudad de Mexico, Guanajuato, Hidalgo, Jalisco, México State, Michoacan, Morelos, Nuevo Leon, Oaxaca, Puebla, Queretaro, San Luis Potosi, Tlaxcala, Veracruz); Guatemala

79 MEX 80 GUA

Remarks: Subgen. Ageratina

Synonyms: hidden

= Ageratina abronia (Klatt) R.M.King & H.Rob.; Phytologia 24: 80 (1972)

= Eupatorium abronium Klatt; Ann. K. K. Naturhist. Hofmus. 9: 355 (1894)

= Eupatorium ovatifolium Hieron.; Bot. Jahrb. Syst. 40(3): 387 (1908)

= Eupatorium prunellifolium Kunth; Nov. Gen. Sp. [H.B.K.], ed. fol. 4: 96 (1818)

= Eupatorium salinum Standl. & Steyerm.; Publ. Field Mus. Nat. Hist.

= Eupatorium saltivarii Sch.Bip. ex B.L.Rob. & Seaton; Proc. Amer. Acad. Arts 28: 108 (1893)

species :

Ageratina prunifolia (Kunth) R.M.King & H.Rob.; Phytologia 19: 225 (1970)

Distribution: Ecuador

83 ECU

Remarks: Subgen. Andinia

Synonyms: hidden

= Eupatorium prunifolium Kunth; Nov. Gen. Sp. [H.B.K.], ed. fol. 4: 104 (1818)

species :

Ageratina pseudochilca (Benth.) R.M.King & H.Rob.; Phytologia 19: 225 (1970)

Distribution: Colombia (Cundinamarca, Nariño); Ecuador

82 CLM 83 ECU

Remarks: Subgen. Andinia

Synonyms: hidden

= Eupatorium cotacachense Hieron.; Bot. Jahrb. Syst. 21: 331 (1895)

= Eupatorium pseudochilca Benth.; Pl. Hartw. [Bentham] 198 (1845)

= Eupatorium pseudochilca var. cotacachense (Hieron.) Cuatrec.; Anales Univ. Madrid, Ci. 4(2): 223 (1935)

= Eupatorium umbrosum Benth.; Pl. Hartw. [Bentham] 198 (1845)

species :

Ageratina pseudogracilis H.Rob.; Proc. Biol. Soc. Washington 116(1): 243 (2003)

Distribution: Venezuela

82 VEN

species :

Ageratina psilodora (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 216 (1970)

Distribution: Colombia (Cesar, Cundinamarca, Magdalena, Norte de Santander)

82 CLM

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium psilodorum B.L.Rob.; Proc. Amer. Acad. Arts 55: 27 (1919)

species :

Ageratina queretaroana B.L.Turner; Phytologia 64(1): 21 (1987)

Distribution: Mexico (Hidalgo, Queretaro, San Luis Potosi, Yucatan)

79 MEX

species :

Ageratina ramireziorum (Espinosa) B.L.Turner; Phytologia 64: 22 (1987)

Distribution: Mexico (Chiapas, Colima, Ciudad de Mexico, Guerrero, Hidalgo, Jalisco, México State, Michoacan, Morelos, Tlaxcala)

79 MEX

Synonyms: hidden

= Eupatorium ramireziorum J.Espinosa; Phytologia 56(5): 334 (1984)

species :

Ageratina ramonensis (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 216 (1970)

Distribution: Mexico (Durango)

79 MEX

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium ramonense B.L.Rob.; Proc. Amer. Acad. Arts 44: 619 (1909)

species :

Ageratina rangelii H.Rob.; Phytologia 88(2): 158 (2006)

Distribution: Colombia (Cesar)

82 CLM

species :

Ageratina regalis H.Rob.; Proc. Biol. Soc. Washington 116(1): 243 (2003)

Distribution: Ecuador

83 ECU

species :

Ageratina resinifera H.Rob.; Proc. Biol. Soc. Washington 114(2): 526 (2001)

Distribution: Mexico (Chiapas)

79 MEX

species :

Ageratina resiniflua (Urb.) R.M.King & H.Rob.; Phytologia 19: 225 (1970)

Distribution: Puerto Rico

81 PUE

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium resinifluum Urb.; Symb. Antill. 1: 461 (1899)

species :

Ageratina reticulifera (Standl. & L.O.Williams) R.M.King & H.Rob.; Phytologia 19: 226 (1970)

Distribution: Costa Rica

80 COS

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium reticuliferum Standl. & L.O.Williams; Ceiba 1: 254 (1951)

species :

Ageratina rhodopappa (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 216 (1970)

Distribution: Colombia (Boyacá, Caldas); Ecuador

82 CLM 83 ECU

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium rhodopappum B.L.Rob.; Contr. Gray Herb. 77: 31 (1926)

form :

f. glandularis (B.L.Rob.) H.Rob.; Proc. Biol. Soc. Washington 116(1): 247 (2003)

Distribution: Ecuador

83 ECU

Synonyms: hidden

= Eupatorium pichinchense f. glandulare B.L.Rob.; Contr. Gray Herb. 61: 10 (1920)

species :

Ageratina rhodopoda (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 226 (1970)

Distribution: Mexico (San Luis Potosi, Zacatecas)

79 MEX

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium rhodopodum B.L.Rob.; Contr. Gray Herb. 75: 12 (1925)

species :

Ageratina rhomboidea (Kunth) R.M.King & H.Rob.; Phytolea 19: 226 (1970)

Distribution: Mexico (Coahuila, Colima, Ciudad de Mexico, Guanajuato, Hidalgo, Jalisco, México State, Michoacan, Morelos, Nuevo Leon, Oaxaca, Puebla, Queretaro, San Luis Potosi, Tlaxcala, Veracruz)

79 MEX

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Ageratina porriginosa (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 225 (1970)

= Eupatorium calaminthifolium var. pluridentatum DC.; Prodr. [A. P. de Candolle] 5: 171 (1836)

= Eupatorium porriginosum B.L.Rob.; Contr. Gray Herb. 75. 11 (1925)

= Eupatorium rhomboideum Kunth; Nov. Gen. Sp. [H.B.K.], ed. fol. 4: 99 (1818)

species :

Ageratina rhypodes (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 216 (1970)

Distribution: Ecuador

83 ECU

Remarks: Subgen. Ageratina

Synonyms: hidden

= Ageratina esmeraldae (Cuatrec.) R.M.King & H.Rob.; Phytologia 24: 90 (1972)

= Ageratina iodotricha (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 214 (1970)

= Eupatorium esmeraldae Cuatrec.; Anales Ci. Univ. Madrid 4(2): 221 (1935)

= Eupatorium iodotrichum B.L.Rob.; Proc. Amer. Acad. Arts 55: 19 (1919)

= Eupatorium iodotrichum f. rivetii B.L.Rob.; Contr. Gray Herb. 90: 26 (1930)

= Eupatorium rhypodes B.L.Rob.; Proc. Amer. Acad. Arts 55: 28 (1919)

= Eupatorium rhypodes f. agloeum B.L.Rob.; Contr. Gray Herb. 77: 33 (1926)

species :

Ageratina rhytidodes (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 216 (1970)

Distribution: Peru

83 PER

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium rhytidodes B.L.Rob.; Contr. Gray Herb. 77: 33 (1926)

species :

Ageratina riparia (Regel) R.M.King & H.Rob.; Phytologia 19: 216 (1970)

Name: Ufer-Wasserdost (DE); Matoespuma fino (ES)

Distribution: Madeira [I] (Madeira Isl. [I]); Canary Isl. [I] (Tenerife [I], La Gomera [I], La Palma Isl. [I]); South Africa [I] (KwaZulu-Natal [I]); Mauritius [I]; La Réunion [I]; Rodrigues [I]; India [I] (Uttarakhand [I], Meghalaya [I], Mizoram [I], Tripura [I]); Sri Lanka [I]; peninsular Malaysia [I]; Java [I]; Australia [I] (Queensland [I], New South Wales [I]); Norfolk Isl. [I]; New Zealand [I]; Hawaii [I] (Kauai [I], Oahu [I], Molokai [I], Lanai [I], Maui [I], Hawaii Isl. [I]); Bermuda [I]; Mexico (Michoacan, Morelos, Oaxaca, Puebla, Veracruz); Cuba [I]; Jamaica [I]; Peru [I]

21 cny mdr 27 saf 29 mau reu rod 40 ind srl 42 jaw mly 50 aus nfk 51 nzl 63 haw 79 MEX 81 ber cub jam 83 per

Remarks: Subgen. Ageratina

Synonyms: hidden

= Ageratina repens (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 216 (1970)

= Ageratina ventillana (Cuatrec.) R.M.King & H.Rob.; Phytologia 19: 217 (1970)

= Eupatorium harrisii Urb.; Symb. Antill. 1: 460 (1899)

= Eupatorium riparium Regel; Gartenflora 15: 324. T. 525 (1866)

= Eupatorium ventillanum Cuatrec.; Ann. Missouri Bot. Gard. 52: 305 (1965)

= Fleischmannia repens B.L.Rob.; Proc. Amer. Acad. Arts 54: 262 (1918)

species :

Ageratina riskindii B.L.Turner; Phytologia 63(6): 431 (1987)

Distribution: Mexico (Coahuila)

79 MEX

species :

Ageratina rivalis (Greenm.) R.M.King & H.Rob.; Phytologia 19: 216 (1970)

Distribution: Mexico (Chiapas); Guatemala; Honduras

79 MEX 80 GUA HON

Synonyms: hidden

= Ageratina skutchii (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 217 (1970)

= Eupatorium rivalis Greenm.; Zoe 5: 186 (1904)

= Eupatorium skutchii B.L.Rob.; Contr. Gray Herb. 104: 27 (1934)

species :

Ageratina roanensis (Small) E.E.Lamont; Phytoneuron 2018-77: 1 (2018)

Name: Appalachian white snakeroot

Distribution: USA (Alabama, Georgia, Kentucky, North Carolina, South Carolina, Tennessee, Virginia, West Virginia)

75 USA 78 USA

Synonyms: hidden

= Ageratina altissima var. roanensis (Small) Clewell & Wooten; Brittonia 23: 138 (1971)

= Eupatorium roanense Small; Man. S. E. Fl. 1326 (1933)

= Eupatorium rugosum var. roanense (Small) Fernald; Rhodora 44: 462 (1942)

species :

Ageratina robinsoniana (Greene) B.L.Turner; Phytologia 64: 22 (1987)

Distribution: Mexico (Guanajuato, Jalisco)

79 MEX

Synonyms: hidden

= Eupatorium espinosarum var. doratophyllum B.L.Rob.; Contr. Gray Herb. 75: 6 (1925)

= Eupatorium robinsonianum Greene; Erythea 1: 150 (1893)

species :

Ageratina roraimensis (N.E.Br.) R.M.King & H.Rob.; Phytologia 19: 216 (1970)

Distribution: Venezuela (Bolívar); Guyana

82 GUY VEN

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium roraimense N.E.Br.; Trans. Linn. Soc. London, Bot. 2. 6: 38 (1901)

= Eupatorium roraimense f. albisetum Steyerm.; Fieldiana, Bot. 28: 633 (1953)

species :

Ageratina rosei H.Rob.; Proc. Biol. Soc. Washington 116(1): 247 (2003)

Distribution: Ecuador

83 ECU

species :

Ageratina rothrockii (A.Gray) R.M.King & H.Rob.; Phytologia 19: 216 (1970)

Name: Rothrock´s snakeroot

Distribution: USA (Arizona, New Mexico, Texas); Mexico (Chihuahua, Coahuila, Durango, Sonora)

76 USA 77 USA 79 MEX

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium rothrockii A.Gray; Syn. Fl. N. Amer. l(2): 102 (1884)

= Eupatorium rothrockii var. shrevei B.L.Rob.; Proc. Amer. Acad. Arts 54: 256 (1918)

= Kyrstenia rothrockii (A.Gray) Greene; Leafl. Bot. Observ. Crit. 1: 9. (1903)

species :

Ageratina rubricaulis (Kunth) R.M.King & H.Rob.; Phytologia 19: 226 (1970)

Distribution: Mexico (Aguascalientes, Chihuahua, Colima, Ciudad de Mexico, Durango, Guanajuato, Guerrero, Hidalgo, Jalisco, México State, Michoacan, Morelos, Nayarit, Oaxaca, Puebla, Queretaro, San Luis Potosi, Veracruz, Zacatecas)

79 MEX

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Ageratina crenaea (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 220 (1970)

= Ageratina tetragona (Schrad.) R.M.King & H.Rob.; Phytologia 19: 227 (1970)

= Eupatorium amplifolium A.Gray; Proc. Amer. Acad. Arts 15: 28 (1879)

= Eupatorium crenaeum B.L.Rob.; Proc. Amer. Acad. Arts 35: 333 (1900)

= Eupatorium rubricaule Kunth; Nov. Gen. Sp. [H.B.K.], ed. fol. 4: 97 (1818)

= Eupatorium tetragonum Schrad.; Ind. Sem. Hort. Acad. Gott. 9: T. 310 (1830), Linnaea 6. Litt. 72 (1831)

= Kyrstenia amplifolia (A.Gray) Greene; Leafl. Bot. Observ. Crit. 1: 9. (1903)

= Kyrstenia amplissima Greene; Leafl. Bot. Observ. Crit. 1: 10 (1903)

species :

Ageratina rupicola (B.L.Rob. & Greenm.) R.M.King & H.Rob.; Phytologia 19: 226 (1970)

Distribution: Mexico (Oaxaca)

79 MEX

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium rupicola B.L.Rob. & Greenm.; Proc. Amer. Acad. Arts 32: 42 (1896)

species :

Ageratina salicifolia R.M.King & H.Rob.; Phytologia 38: 329 (1978)

Distribution: Mexico (Durango, Sinaloa)

79 MEX

Remarks: Subgen. Ageratina

species :

Ageratina saltillensis (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 226 (1970)

Distribution: Mexico (Coahuila, Hidalgo, Nuevo Leon, Queretaro, San Luis Potosi, Tamaulipas, Veracruz)

79 MEX

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium saltillense B.L.Rob.; Proc. Amer. Acad. Arts 43: 34 (1907)

= Eupatorium ligustrinum var. villiferum B.L.Rob.; (1925)

species :

Ageratina salvadorensis R.M.King & H.Rob.; Phytologia 38: 337(-338). (1978)

Distribution: El Salvador

80 ELS

Remarks: Subgen. Neogreenella

species :

Ageratina sandersii B.L.Turner; Phytologia 64(1): 23 (1987)

Distribution: Mexico (Durango, Sinaloa, Sonora)

79 MEX

species :

Ageratina saxorum (Standl. & Steyerm.) H.Rob.; Phytologia 71: 171 (1991)

Distribution: Mexico (Chiapas); Guatemala

79 MEX 80 GUA

Synonyms: hidden

= Ageratina thomasii R.M.King & H.Rob.; Phytologia 69(2): 73 (1990)

= Eupatorium saxorum Standl. & Steyerm.; Publ. Field Mus. Nat. Hist., Bot. Ser. 23: 189 (1944)

= Fleischmannia saxorum (Standl. & Steyerm.) R.M.King & H.Rob.; Phytologia 49: 5 (1981)

species :

Ageratina schaffneri (Sch.Bip. ex B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 217 (1970)

Distribution: Mexico; Costa Rica

79 MEX 80 COS

Synonyms: hidden

= Eupatorium schaffneri Sch.Bip. ex B.L.Rob.; Proc. Amer. Acad. Arts 27: 171 (1892)

species :

Ageratina scopulorum (Wedd.) R.M.King & H.Rob.; Phytologia 19: 217 (1970)

Distribution: Peru; Bolivia (Cochabamba, La Paz)

83 BOL PER

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium scopulorum Wedd.; Chlor. Andina 1: 216 (1857)

= Eupatorium azarangoense Sch.Bip. ex Wedd.; Chlor. Andina 1: 217 (1857)

species :

Ageratina scorodonioides (A.Gray) R.M.King & H.Rob.; Phytologia 19: 226 (1970)

Distribution: Mexico (Aguascalientes, Coahuila, Durango, Guanajuato, Hidalgo, Jalisco, México State, Michoacan, Nuevo Leon, Puebla, Queretaro, San Luis Potosi, Tamaulipas, Tlaxcala, Veracruz, Zacatecas)

79 MEX

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium scorodonioides A.Gray; Proc. Amer. Acad. Arts 15: 27 (1880)

= Eupatorium scorodonioides var. grossedentatum B.L.Rob.; Proc. Amer. Acad. Arts 35: 340 (1900)

species :

Ageratina seleri B.L.Turner; Phytologia 63(1): 4 (1987)

Distribution: Mexico (Oaxaca)

79 MEX

species :

Ageratina serboana B.L.Turner; Phytologia 89(2): 194 (2007)

Distribution: Mexico (Oaxaca)

79 MEX

species :

Ageratina serrulata H.Rob.; Proc. Biol. Soc. Washington 116(1): 250 (2003)

Distribution: Colombia

82 CLM

species :

Ageratina shastensis (Taylor & Stebbins) R.M.King & H.Rob.; Phytologia 45: 464 (1980)

Name: Mt. Shasta snakeroot

Distribution: USA (California)

76 USA

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium shastense Taylor & Stebbins; Madrofio 25: 218(-220). (1978)

species :

Ageratina simulans (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 226 (1970)

Distribution: Peru

83 PER

Remarks: Subgen. Apoda

Synonyms: hidden

= Eupatorium simulans B.L.Rob.; Proc. Amer. Acad. Arts 55: 31 (1919)

species :

Ageratina sodiroi (Hieron.) R.M.King & H.Rob.; Phytologia 19: 217 (1970)

Distribution: Ecuador

83 ECU

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium sodiroi Hieron. ex Sodiro; Bot. Jahrb. Syst. 29: 12 (1900)

species :

Ageratina soejimana B.L.Turner; Phytologia 90(3): 360 (2008)

Distribution: Mexico (Oaxaca)

79 MEX

species :

Ageratina solana B.L.Turner; Phytologia 90(3): 361 (2008)

Distribution: Mexico (Oaxaca)

79 MEX

species :

Ageratina sotarensis (Hieron.) R.M.King & H.Rob.; Phytologia 19: 217 (1970)

Distribution: Colombia (Cauca, Nariño)

82 CLM

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium soratense Hieron.; Bot. Jahrb. Syst. 21: 333 (1895)

= Eupatorium sotarense var. breviflora Hieron.; Bot. Jahrb. Syst. 28: 574 (1901)

species :

Ageratina sousae B.L.Turner; Phytologia 64(1): 23 (1987)

Distribution: Mexico (Oaxaca)

79 MEX

species :

Ageratina spooneri B.L.Turner; Phytologia 90(3): 362 (2008)

Distribution: Mexico (Veracruz)

79 MEX

species :

Ageratina standleyi R.M.King & H.Rob.; Phytologia 24: 95 (1972)

Distribution: Costa Rica

80 COS

Remarks: Subgen. Ageratina

species :

Ageratina sternbergiana (DC.) R.M.King & H.Rob.; Phytologia 19: 217 (1970)

Distribution: Peru; Bolivia (Chuquisaca, Cochabamba, La Paz, Santa Cruz)

83 BOL PER

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium heptanthum Sch.Bip. ex Rusby; Bull. New York Bot. Gard. 4: 378 (1907)

= Eupatorium sternbergianum DC.; Prodr. [A. P. de Candolle] 5: 167 (1836)

species :

Ageratina stictophylla (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 226 (1970)

Distribution: Peru

83 PER

Remarks: Subgen. Apoda

Synonyms: hidden

= Eupatorium stictophyllum B.L.Rob.; Proc. Amer. Acad. Arts 55: 36 (1919)

species :

Ageratina stricta (A.Gray) R.M.King & H.Rob.; Phytologia 19: 226 (1970)

Distribution: Mexico (Sonora, Chihuahua, Sinaloa)

79 MEX

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium strictum A.Gray; Proc. Amer. Acad. Arts 21: 384 (1886)

species :

Ageratina subcoriacea R.M.King & H.Rob.; Phytologia 69(2): 73 (1990)

Distribution: Mexico (Chiapas)

79 MEX

species :

Ageratina subferruginea (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 226 (1970)

Distribution: Peru

83 PER

Remarks: Subgen. Andinia

Synonyms: hidden

= Eupatorium subferrugineum B.L.Rob.; Contr. Gray Herb. 96: 22 (1931)

species :

Ageratina sundbergii B.L.Turner; Phytologia 61: 78 (1986)

Distribution: Mexico (Durango, Sinaloa)

79 MEX

species :

Ageratina tambillensis (Hieron.) R.M.King & H.Rob.; Phytologia 19: 217 (1970)

Distribution: Ecuador; Peru

83 ECU PER

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium tambillense Hieron.; Urb., Bot. Jahrb. Syst. 40: 380 (1908)

species :

Ageratina tarmensis (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 217 (1970)

Distribution: Peru

83 PER

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium tarmense B.L.Rob.; Contr. Gray Herb. 104: 28 (1934)

species :

Ageratina tejalapana B.L.Turner; Phytologia 95(2): 143, fig. 5, map 4 (2013)

Distribution: Mexico (Oaxaca)

79 MEX

species :

Ageratina tenuis (Fr.) R.M.King & H.Rob.; Phytologia 19: 217 (1970)

Distribution: Bolivia (Chuquisaca, Santa Cruz, Tarija); Argentina (Jujuy, Salta)

83 BOL 85 ARG

Remarks: Subgen. Ageratina

Synonyms: hidden

= Ageratina camachensis (Hieron.) R.M.King & H.Rob.; Phytologia 19: 213 (1970)

= Eupatorium camachense Hieron.; Urb., Bot. Jahrb. Syst. 40: 386 (1908)

= Eupatorium tenue Fr.; Arch. Bot. 5(13): 9. (1906)

species :

Ageratina textitlana B.L.Turner; Phytologia 90(3): 363 (2008)

Distribution: Mexico (Oaxaca)

79 MEX

species :

Ageratina theifolia (Benth.) R.M.King & H.Rob.; Phytologia 19: 227 (1970)

Distribution: Colombia (Boyacá, Caldas, Cauca, Chocó, Cundinamarca, Meta, Nariño, Norte de Santander, Quindío, Risaralda, Santander, Valle); Venezuela (Lara, Merida, Tachira, Trujillo)

82 CLM VEN

Remarks: Subgen. Andinia

Synonyms: hidden

= Eupatorium theifolium Benth.; Pl. Hartw. [Bentham] 199 (1845)

= Eupatorium theifolium var. subellipticum B.L.Rob.; Contr. Gray Herb. 73: 19 (1924)

species :

Ageratina thyrsiflora (Greene) R.M.King & H.Rob.; Phytologia 19: 227 (1970)

Name: Congested snakeroot

Distribution: USA (Arizona); Mexico (Chihuahua, Durango, Jalisco, Nayarit, Sinaloa, Sonora, Zacatecas)

76 USA 79 MEX

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium thyrsiflorum (Greene) B.L.Rob.; Proc. Amer. Acad. Arts 43: 36 (1907)

= Eupatorium thyrsiflorum var. holoclerum B.L.Rob.; Proc. Amer. Acad. Arts 43: 36 (1907)

= Kyrstenia thyrsiflora Greene; Leafl. Bot. Observ. Crit. 1: 9. (1903)

species :

Ageratina tinifolia (Kunth) R.M.King & H.Rob.; Phytologia 19: 227 (1970)

Distribution: Colombia (Antioquia, Arauca, Boyacá, Caldas, Cauca, Cesar, Chocó, Cundinamarca, Huila, Meta, Nariño, Norte de Santander, Putumayo, Quindío, Risaralda, Santander, Tolima, Valle); Venezuela (Tachira); Ecuador

82 CLM VEN 83 ECU

Remarks: Subgen. Andinia

Synonyms: hidden

= Eupatorium lehmannianum Klatt; Bot. Jahrb. Syst. 8: 34 (1886)

= Eupatorium tinifolium Kunth; Nov. Gen. Sp. [H.B.K.], ed. fol. 4: 104 (1818)

species :

Ageratina tomentella (Schrad.) R.M.King & H.Rob.; Phytologia 19: 227 (1970)

Distribution: Mexico (Chiapas, Guerrero, Hidalgo, México State, Oaxaca, Puebla, Queretaro, Tlaxcala, Veracruz); Guatemala

79 MEX 80 GUA

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Ageratina hebes (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 222 (1970)

= Ageratina loeseneri (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 223 (1970)

= Eupatorium hebes B.L.Rob.; Contr. Gray Herb. 75: 7. (1925)

= Eupatorium hebes var. rasum B.L.Rob.; Contr. Gray Herb. 75: 8 (1925)

= Eupatorium loesenerii B.L.Rob.; Proc. Amer. Acad. Arts 35: 336 (1900)

= Eupatorium smithii B.L.Rob.; Proc. Amer. Acad. Arts 35: 340 (1900)

= Eupatorium tomentellum (A.Gray) Schrad.; Ind. Sem. Hort. Acad. Gott. 3. T. 3 (1833), Linnaea 10: Litt. 70 (1836)

= Eupatorium tomentosum DC. ex Steud.; Nomencl. Bot. 1: 609 (1840), nom. nud.

species :

Ageratina tonduzii (Klatt) R.M.King & H.Rob.; Phytologia 19: 217 (1970)

Distribution: Costa Rica

80 COS

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium tonduzii Klatt; Compos. Nov. Costaric. (Bot. Beibl. Leopoldina) 4 (1895)

species :

Ageratina tovarae H.Rob.; Phytologia 93(1): 95 (2011)

Distribution: Peru (Cajamarca)

83 PER

species :

Ageratina trianae H.Rob.; Phytologia 88(2): 163 (2006)

Distribution: Colombia (Cundinamarca)

82 CLM

species :

Ageratina triangulatum (DC.) B.L.Turner; Phytologia 64: 24 (1987)

Distribution: Mexico (México State, Veracruz, Guerrero)

79 MEX

Synonyms: hidden

= Eupatorium triangulatum Alamán & DC.; Prodr. [A. P. de Candolle] 5: 172 (1836)

species :

Ageratina triniona (McVaugh) R.M.King & H.Rob.; Phytologia 24: 98 (1972)

Distribution: Mexico (Aguascalientes, Durango, Jalisco, Nayarit, Zacatecas)

79 MEX

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium trinionum McVaugh; Contr. Univ. Michigan Herb. 9: 402 (1972)

species :

Ageratina tristis (DC.) R.M.King & H.Rob.; Phytologia 19: 227 (1970)

Distribution: Jamaica

81 JAM

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium ceanothifolium Spreng.; Syst. Veg. Fl. Peruv. Chil. 3: 418 (1826)

= Eupatorium triste DC.; Prodr. [A. P. de Candolle] 5: 166 (1836)

species :

Ageratina urbani (Ekman ex Urb.) R.M.King & H.Rob.; Phytologia 19: 227 (1970)

Distribution: Haiti

81 HIS

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium urbani Ekman ex Urb.; Ark. Bot. 23a(11): 55 (1931)

species :

Ageratina vacciniifolia (Benth.) R.M.King & H.Rob.; Phytologia 19: 227 (1970)

Distribution: Colombia (Arauca, Boyacá, Casanare, Cauca, Cundinamarca, Meta, Santander)

82 CLM

Remarks: Subgen. Andinia

Synonyms: hidden

= Eupatorium confertifolium Klatt; Abh. Naturf. Ges. Halle 15: 324 (1882)

= Eupatorium vacciniifolium Benth.; Pl. Hartw. [Bentham] 200 (1845)

species :

Ageratina vallincola (DC.) R.M.King & H.Rob.; Phytologia 19: 217 (1970)

Distribution: Peru

83 PER

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium vallincola DC.; Prodr. [A. P. de Candolle] 5: 168 (1836)

= Eupatorium vallincola var. brevipilum B.L.Rob.; Proc. Amer. Acad. Arts 55: 39 (1919)

species :

Ageratina venulosa (A.Gray) R.M.King & H.Rob.; Phytologia 19: 227 (1970)

Distribution: Mexico (Aguascalientes, Chihuahua, Durango, Jalisco, Sonora, Zacatecas)

79 MEX

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Ageratina acutidentata (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 219 (1970)

= Ageratina durangensis (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 221 (1970)

= Eupatorium acutidentatum B.L.Rob.; Proc. Amer. Acad. Arts 43: 29 (1907)

= Eupatorium durangense B.L.Rob.; Proc. Amer. Acad. Arts 43: 31 (1907)

= Eupatorium durangense var. angustius B.L.Rob.; Proc. Amer. Acad. Arts 43: 31 (1907)

= Eupatorium venulosum A.Gray; Proc. Amer. Acad. Arts 21: 384 (1886)

species :

Ageratina vernalis (Vatke & Kurtz) R.M.King & H.Rob.; Phytologia 19: 227 (1970)

Distribution: Mexico (Chiapas, Durango, Hidalgo, México State, Nuevo Leon, Oaxaca, Puebla, Queretaro, San Luis Potosi, Sinaloa, Tamaulipas, Veracruz); Guatemala

79 MEX 80 GUA

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Ageratina subinclusa (Klatt) R.M.King & H.Rob.; Phytologia 38: 339 (1978)

= Ageratina subpenninervia (Sch.Bip. ex Klatt) R.M.King & H.Rob.; Phytologia 37: 455 (1977)

= Conoclinium grandiflorum Vilm.; Vilm. Blumengaert.

= Eupatorium grandiflorum André; Rev. Hort. (Paris) 54: 384 (1882), nom. illeg.

= Eupatorium melanolepis Sch.Bip. ex Klatt; Leopoldina 20: 89 (1884)

= Eupatorium monticola L.O.Williams; Fieldiana, Bot. 36: 9193). (1975)

= Eupatorium subinclusum Klatt; Leopoldina 20: 75 (1884)

= Eupatorium subpenninervium Sch.Bip. ex Klatt; Leopoldina 20: 89 (1884)

= Eupatorium vernale Vatke & Kurtz; Ind. Sem. Hort. Berol. App. 2 (1871), Gartenfl. 36 (1873)

species :

Ageratina vernicosa (Sch.Bip. ex Greenm.) R.M.King & H.Rob.; Phytologia 19: 227 (1970)

Distribution: Mexico (Ciudad de Mexico, Hidalgo, México State, Michoacan, Morelos, Veracruz)

79 MEX

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Ageratina hintoniorum B.L.Turner; Southwest. Nat., 29(1): 57 (1984)

= Eupatorium vernicosum Sch.Bip. ex Greenm.; Zoe 5. 186 (1904)

species :

Ageratina viburnoides (DC.) R.M.King & H.Rob.; Phytologia 19: 227 (1970)

Distribution: Mexico (Coahuila, Nuevo Leon, Queretaro, San Luis Potosi, Tamaulipas)

79 MEX

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium viburnoides DC.; Prodr. [A. P. de Candolle] 5: 171 (1836)

species :

Ageratina viejoana B.L.Turner; Phytologia 75(2): 147 (1993)

Distribution: Mexico (Nuevo Leon, Tamaulipas)

79 MEX

species :

Ageratina villarrealii B.L.Turner; Phytologia 92(3): 362 (2010)

Distribution: Mexico (Coahuila, Nuevo Leon)

79 MEX

species :

Ageratina villonacoensis H.Rob.; Proc. Biol. Soc. Washington 116(1): 252 (2003)

Distribution: Ecuador

83 ECU

species :

Ageratina viscosa (Kunth) R.M.King & H.Rob.; Phytologia 19: 228 (1970)

Distribution: Colombia (Boyacá, Cundinamarca); Ecuador

82 CLM 83 ECU

Remarks: Subgen. Andinia

Synonyms: hidden

= Eupatorium viscosum Kunth; Nov. Gen. Sp. [H.B.K.], ed. fol. 4: 101 (1818)

species :

Ageratina viscosissima (Rolfe) R.M.King & H.Rob.; Phytologia 49: 3 (1981)

Distribution: Mexico (Baja California Sur)

79 MEX

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium viscosissimum Rolfe; Gard. Chron. Ser. 3. 39: 274 (1906)

= Eupatorium purpusii var. monticola Brandegee; Erythea 7: 3 (1899)

species :

Ageratina warnockii B.L.Turner; Phytologia 64(1): 25 (1987)

Distribution: Mexico (Durango)

79 MEX

species :

Ageratina websteri H.Rob.; Proc. Biol. Soc. Washington 116(1): 252 (2003)

Distribution: Ecuador

83 ECU

species :

Ageratina wrightii (A.Gray) R.M.King & H.Rob.; Phytologia 19: 228 (1970)

Name: Wright´s snakeroot

Distribution: USA (Arizona, New Mexico, Texas); Mexico (Aguascalientes, Coahuila, Durango, Guanajuato, Hidalgo, Jalisco, México State, Nayarit, Nuevo Leon, Oaxaca, Puebla, Queretaro, San Luis Potosi, Tamaulipas, Tlaxcala, Veracruz, Zacatecas)

76 USA 77 USA 79 MEX

Remarks: Subgen. Neogreenella

Synonyms: hidden

= Eupatorium wrightii A.Gray; Smithsonian Contr. Knowl. 3(5) (Pl. Wright. 1): 87 (1852)

= Kyrstenia parvifolia Greene; Leafl. Bot. Observ. Crit. 1: 12 (1903)

species :

Ageratina wurdackii R.M.King & H.Rob.; Phytologia 38: 332 (1978)

Distribution: Peru

83 PER

Remarks: Subgen. Andinia

species :

Ageratina yaharana B.L.Turner; Phytologia 90(3): 365 (2008)

Distribution: Mexico (Guerrero)

79 MEX

species :

Ageratina yecorana B.L.Turner; Phytologia 63(6): 425 (1987)

Distribution: Mexico (Chihuahua, Sonora)

79 MEX

species :

Ageratina zapalinama B.L.Turner; Phytologia 71(4): 312 (1991)

Distribution: Mexico (Coahuila, Nuevo Leon)

79 MEX

species :

Ageratina zaragozana B.L.Turner; Phytologia 96(1): 14 (2014)

Distribution: Mexico (Nuevo Leon)

79 MEX

species :

Ageratina zinniifolia (B.L.Rob.) R.M.King & H.Rob.; Phytologia 19: 218 (1970)

Distribution: Colombia (La Guajira, Magdalena)

82 CLM

Remarks: Subgen. Ageratina

Synonyms: hidden

= Eupatorium zinniifolium B.L.Rob.; Proc. Amer. Acad. Arts 54: 261 (1918)

species :

Ageratina zunilana (Standl. & Steyerm.) R.M.King & H.Rob.; Phytologia 19: 218 (1970)

Distribution: Mexico (Chiapas); Guatemala

79 MEX 80 GUA

Remarks: Subgen. Ageratina

Synonyms: hidden

= Ageratina motozintlensis R.M.King & H.Rob.; Phytologia 69(2): 71 (1990)

= Eupatorium zunilanum Standl. & Steyerm.; Publ. Field Mus. Nat. Hist.

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A complete, synonymic checklist of the Higher Plants of the World

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A complete, synonymic checklist of the Higher Plants of the World

Version 24.11 (November 5th, 2024)

Covering 355,576 accepted species,
8,715 hybrids, 47,863 accepted infraspecific taxa and 1,000,581 synonyms,
in total 1,412,785* names

[about 25,000 dubious, "unplaced" names and about 4,000 invalid names (Art. 24.3) like "typicus*" are deliberately omitted]

With complete, detailed distribution data (countries and regions) and literature references

Arranged in linear phylogenetic sequence reflecting true relationships

Fully searchable and continously updated

With 38,209 pictures of 15,787 species

Assembled through 40 years independently from other databases

In cooperation with Catalogue of Life

Contact

How to Cite:

Search

+ Family

Filter

Order

Family (12)

Genus (1754)

Display options

A complete, synonymic checklist of the Higher Plants of the World

Version 24.11 (November 5th, 2024)

Covering 355,576 accepted species, 8,715 hybrids, 47,863 accepted infraspecific taxa and 1,000,581 synonyms, in total 1,412,785* names

[*about 25,000 dubious, "unplaced" names and about 4,000 invalid names (Art. 24.3) like "typicus" are deliberately omitted]

With complete, detailed distribution data (countries and regions) and literature references

Arranged in linear phylogenetic sequence reflecting true relationships

Fully searchable and continously updated

With 38,209 pictures of 15,787 species

Assembled through 40 years independently from other databases

In cooperation with Catalogue of Life

Covering 355,576 accepted species,
8,715 hybrids, 47,863 accepted infraspecific taxa and 1,000,581 synonyms,
in total 1,412,785* names

[about 25,000 dubious, "unplaced" names and about 4,000 invalid names (Art. 24.3) like "typicus*" are deliberately omitted]