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Ver. 25.03
Mar. 6th, 2025

242.0000 Family Betulaceae Gray; Nat. Arr. Brit. Pl. 2: 222, 243 (1822), nom. cons.
6 genera, ca. 200 spp.
Species listed in database: 172; hybrids: 38
= Carpinaceae Vest; Anleit. Stud. Bot. 265, 280 (1818)
= Corylaceae Mirb.; Elém. Physiol. Vég. Bot. 2: 906 (1815), nom. cons.
242.2101 Genus Corylus L.; Sp. Pl. [Linnaeus] 998 (1753)
Distribution: Temperate Northern Hemisphere, esp. (ca. 10) European part of Russia, Caucasus, S- and E-Siberia, and Far East of Russia, China (7), North America (2)
Species listed in database: 16; hybrids: 1
= Avellana Dochnahl; Sichere Führ. Obstkund. 33 (1860), opus utique oppr.
= Calycera Dochnahl; Sichere Führ. Obstkund. 52 (1860), opus utique oppr.
= Clyperia Dochnahl; Sichere Führ. Obstkund. 38 (1860), opus utique oppr.
= Lopima Dochnahl; Sichere Führ. Obstkund. 47 (1860), opus utique oppr.
= Rostella Dochnahl; Sichere Führ. Obstkund. 51 (1860), opus utique oppr.
= Trihilea Dochnahl; Sichere Führ. Obstkund. 52 (1860), opus utique oppr.
species :
Corylus americana Marshall; Arbust. Amer. 37 (1785)
Name: American hazelnut
Distribution: Slovakia [I]; Canada (Manitoba, Ontario, Québec); USA (Alabama, Arkansas, Connecticut, District of Columbia, Delaware, 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, Virginia, Vermont, Wisconsin, West Virginia)
11 slo 71 CDN 72 CDN 74 USA 75 USA 78 USA
Synonyms: hidden
= Corylus americana f. calyculata (Dippel) Schelle; Handb. Laubholzben. [Beissner et al.] 50 (1903)
= Corylus americana f. humilis (Willd.) Schelle; Handb. Laubholzben. [Beissner et al.] 49 (1903)
= Corylus americana f. missouriensis (A.DC.) Fernald; Rhodora 34: 96 (1932)
= Corylus americana var. altior Farw.; Rep. (Annual) Michigan Acad. Sci. 17: 168 (1916)
= Corylus americana var. calyculata (Dippel) H.J.P.Winkl.; Pflanzenr. [Engler] IV.61, Heft 19 (Betulac.): 48 (1904)
= Corylus americana var. humilis (Willd.) Dippel; Handb. Laubholzk. 2: 132 (1891)
= Corylus americana var. indehiscens E.J.Palmer & Steyerm.; Ann. Missouri Bot. Gard. 22: 516 (1935)
= Corylus americana var. missouriensis A.DC.; Prodr. [A.P. de Candolle] 16(2): 132 (1864)
= Corylus americana Walter; Fl. Carol. [Walter] 236 (1788), nom. illeg.
= Corylus americana Willd.; Sp. Pl., ed. 4 [Willdenow] 3(1): 471 (1805), nom. illeg.
= Corylus calyculata Dippel; Handb. Laubholzk. 2: 132 (1891)
= Corylus humilis Willd.; Enum. Pl. [Willdenow] 983 (1809)
= Corylus serotina G.Kirchn.; Arbor. Muscav. [Petzold & Kirchner] 672 (1864)
= Corylus virginiana Münchh.; Hausvater 3: 830 (1768), nom. utique rej.
species :
Corylus avellana L.; Sp. Pl. [Linnaeus] 998 (1753)
Name: Gewöhnliche Hasel (DE), Common filbert, Hazel (EN)
Distribution: England (England, Wales, Isle of Man, Scotland, Outer Hebrides, Orkney Isl. [I], Shetland Isl. [I], Isles of Scilly); Ireland (Ireland, Northern Ireland); Denmark; Norway; Sweden; Finland; Netherlands; Belgium; Luxembourg; Germany (Brandenburg, Berlin, Baden-Württemberg, Bayern, Hessen, Hamburg, Mecklenburg-Vorpommern, Niedersachsen, Nordrhein-Westfalen, Rheinland-Pfalz, Schleswig-Holstein, Saarland, Sachsen, Sachsen-Anhalt, Thüringen); Switzerland; Liechtenstein; Austria; Poland; Czech Republic; Slovakia; Hungary; Portugal; Spain; Andorra; France; Channel Isl. (Alderney, Guernsey, Jersey, Sark); Corsica; Sardinia; Italy; Sicily; Malta; San Marino; Slovenia; Croatia; Bosnia & Hercegovina; Montenegro; Serbia; Kosovo; North Macedonia; Albania; Romania; Bulgaria; European Turkey; Greece (mostly North, Kiklades [c]); Crete [c]; Estonia; Latvia; Lithuania; Belarus; C-European Russia; E-European Russia; N-European Russia; W-European Russia; Moldova; Ukraine; Crimea; Azores [I] (Sao Miguel Isl. [I]); Kazakhstan; Tajikistan; Northern Caucasus; Georgia [Caucasus]; Armenia; Azerbaijan; East Aegaean Isl. [c]; Turkey (E-Anatolia, Inner Anatolia, N-Anatolia, NE-Anatolia, S-Anatolia, SSW-Anatolia, WN-Anatolia); Iran (N-Iran, Iranian Aserbaijan); Cyprus (C-Mountains); India [c]; Canada [I] (British Columbia [I], Newfoundland [I]); USA [I] (New York [I], Oregon [I], Washington State [I])
10 DEN FIN GRB IRE NOR SWE 11 AUT BGM CZE GER HUN LIE LUX NET POL SLO SWI 12 ADO CIS COR FRA POR SAR SPA 13 ALB BIH BUL CRO GRC ITA KOS kri MLT MNT NMA ROM SIC SLV SMA SRB TUE 14 BLR EST KRY LAT LIT MLD RUS UKR 21 azo 32 KAZ TZK 33 ARM AZE GEO NCS 34 CYP eai IRN TUR 40 ind 71 cdn 72 cdn 73 usa 75 usa
Synonyms: hidden
= Corylus alba Aiton ex Steud.; Nomencl. Bot. [Steudel], ed. 2, 1: 421 (1840)
= Corylus algeriensis Oct.Thomas; Guide Prat. Amateur Fruits 36, 213 (1876)
= Corylus arborea Steud.; Nomencl. Bot. [Steudel], ed. 2, 1: 424 (1840), pro syn.
= Corylus ardua (Poit. & Turpin) Poit. & Turpin; Pomol. Franç. 4: t. 214 (1846)
= Corylus avellana f. albovariegata Hegi; Ill. Fl. Mitt.-Eur. [Hegi] 3: 73 (1910)
= Corylus avellana f. atropurpurea G.Kirchn.; Arbor. Muscav. [Petzold & Kirchner] 2567 (1864)
= Corylus avellana f. aurea (G.Kirchn.) Dippel; Handb. Laubholzk. 2: 128 (1891)
= Corylus avellana f. aurea Hegi; Ill. Fl. Mitt.-Eur. [Hegi] 3: 73 (1910)
= Corylus avellana f. aurea G.Kirchn.; Arbor. Muscav. [Petzold & Kirchner] 2567 (1864)
= Corylus avellana f. aureomarginata Hegi; Ill. Fl. Mitt.-Eur. [Hegi] 3: 73 (1910)
= Corylus avellana f. contorta (Bean) Rehder; Bibl. Cult. Trees 111 (1949)
= Corylus avellana f. fuscorubra Dippel; Handb. Laubholzk. 2: 128 (1891)
= Corylus avellana f. glomerata (DC.) Hegi; Ill. Fl. Mitt.-Eur. [Hegi] 3: 73 (1910)
= Corylus avellana f. grandifolia Zapal.; Consp. Fl. Galic. Crit. 2: 10 (1908)
= Corylus avellana f. grandis (Aiton) Lam.; Encycl. [J.Lamarck et al.] 5: 496 (1804)
= Corylus avellana f. heterophylla (Loudon) Rehder; Bibl. Cult. Trees 110 (1949)
= Corylus avellana f. laciniata (Burchardt) Döll; Rhein. Fl. 273 (1843)
= Corylus avellana f. laciniata G.Kirchn.; Arbor. Muscav. [Petzold & Kirchner] 2567 (1864)
= Corylus avellana f. microphylla Gajic & Korac; Glasn. Prír. Mus. Beogradu, Ser. B, Biol. Nauke 33: 60 (1979)
= Corylus avellana f. peltata Buser; Exsicc. (Soc. Étude Fl. Franç.-Helv.) 1904: no. 1544 (1904)
= Corylus avellana f. peltata De Langhe; Bull. Soc. Roy. Bot. Belgique 106: 70 (1973), nom. illeg.
= Corylus avellana f. pendula (Nestel) Dippel; Handb. Laubholzk. 2: 128 (1892)
= Corylus avellana f. sylvestris (DC.) Lindm.; 198 (1918)
= Corylus avellana f. variegata (A.DC.) Dippel; Handb. Laubholzk. 2: 128 (1891)
= Corylus avellana subsp. memorabilis (Sennen) Sennen; Treb. Mus. Ci. Nat. Barcelona, Ser. Bot. 15: 33 (1932)
= Corylus avellana subsp. sylvestris Ehrh.; Hannover. Mag. 18: 234 (1780), nom. inval.
= Corylus avellana var. acuminata Henriksson; Bot. Not. 1915: 247 (1915)
= Corylus avellana var. acuta Henriksson; Bot. Not. 1930: 149 (1930)
= Corylus avellana var. acutiuscula Henriksson; Bot. Not. 1915: 244 (1915)
= Corylus avellana var. alba DC.; 308 (1805)
= Corylus avellana var. amblyocarpa Henriksson; Bot. Not. 1915: 244 (1915)
= Corylus avellana var. annulata Henriksson; Bot. Not. 1923: 283 (1923)
= Corylus avellana var. apiculata Henriksson; Bot. Not. 1915: 241 (1915)
= Corylus avellana var. arcuata Henriksson; Bot. Not. 1915: 239 (1915)
= Corylus avellana var. ardua Poit. & Turpin; Traité Arbr. Fruit. 6: 46 (1835)
= Corylus avellana var. atropurpurea G.Kirchn.; Arbor. Muscav. [Petzold & Kirchner] 670 (1864)
= Corylus avellana var. attenuata Henriksson; Bot. Not. 1923: 280 (1923)
= Corylus avellana var. aurea G.Kirchn.; Arbor. Muscav. [Petzold & Kirchner] 2567 (1864)
= Corylus avellana var. barcelonensis Loudon; Arbor. Frutic. Brit. 3: 2018 (1838), nom. superfl.
= Corylus avellana var. brachychlamys Spach; Ann. Sci. Nat., Bot., Sér. 2, 16: 106 (1841), nom. superfl.
= Corylus avellana var. brevilaciniata Henriksson; Bot. Not. 1931: 213 (1931)
= Corylus avellana var. bulbosa Henriksson; Bot. Not. 1918: 299 (1918)
= Corylus avellana var. cervispina Henriksson; Bot. Not. 1915: 244 (1915)
= Corylus avellana var. coelata Henriksson; Bot. Not. 1923: 280 (1923)
= Corylus avellana var. complanata Henriksson; Bot. Not. 1923: 281 (1923)
= Corylus avellana var. compressa Henriksson; Bot. Not. 1915: 241 (1915)
= Corylus avellana var. coniformis Henriksson; Bot. Not. 1931: 213 (1931)
= Corylus avellana var. contorta Bean; Garden (London, 1871-1927) 54: 349 (1898)
= Corylus avellana var. contracta Henriksson; Bot. Not. 1927: 157 (1927)
= Corylus avellana var. crispa Jess.; Deut. Excurs.-Fl. 443 (1879)
= Corylus avellana var. crispa Loudon; Arbor. Frutic. Brit. 3: 2018 (1838)
= Corylus avellana var. cryptomeria Henriksson; Bot. Not. 1915: 241 (1915)
= Corylus avellana var. cuneata Henriksson; Bot. Not. 1918: 299 (1918)
= Corylus avellana var. cupulifera Henriksson; Bot. Not. 1918: 299 (1918)
= Corylus avellana var. cylindrochlamys Spach; Ann. Sci. Nat., Bot., Sér. 2, 16: 106 (1841), nom. superfl.
= Corylus avellana var. distans Henriksson; Bot. Not. 1915: 239 (1915)
= Corylus avellana var. divergens Henriksson; Bot. Not. 1931: 213 (1931)
= Corylus avellana var. ellipsoidea Henriksson; Bot. Not. 1915: 246 (1915)
= Corylus avellana var. elongata Henriksson; Bot. Not. 1915: 246 (1915)
= Corylus avellana var. extensa Henriksson; Bot. Not. 1923: 281 (1923)
= Corylus avellana var. fructu-rubenta Nois.; Man. Compl. Jard. 2: 464 (1825)
= Corylus avellana var. frutescens Merrem; 436 (1809)
= Corylus avellana var. fusiformis Henriksson; Bot. Not. 1915: 246 (1915)
= Corylus avellana var. gibbosa Henriksson; Bot. Not. 1915: 245 (1915)
= Corylus avellana var. glabrata Henriksson; Bot. Not. 1915: 246 (1915)
= Corylus avellana var. glandifera Henriksson; Bot. Not. 1930: 149 (1930)
= Corylus avellana var. glandulosa Godet; Mem. Soc. Sci. Nat. Neuchatel 2: 15, Corr. 3 (1839)
= Corylus avellana var. glandulosa Henriksson; Bot. Not. 1923: 281 (1923), nom. illeg.
= Corylus avellana var. gloiotricha Beck; Fl. Nieder-Österreich 267 (1890)
= Corylus avellana var. gracilescens Henriksson; Bot. Not. 1931: 214 (1931)
= Corylus avellana var. grandis Aiton; Hort. Kew. [W.Aiton] 3: 363 (1789)
= Corylus avellana var. grandis DC.; 308 (1805)
= Corylus avellana var. heterophylla Loudon; Arbor. Frutic. Brit. 3: 2017 (1838)
= Corylus avellana var. incisa André; Art Jardins 574 (1879)
= Corylus avellana var. indivisa Henriksson; Bot. Not. 1931: 214 (1931)
= Corylus avellana var. integra Henriksson; Bot. Not. 1915: 241 (1915)
= Corylus avellana var. involucrata Henriksson; Bot. Not. 1915: 245 (1915)
= Corylus avellana var. lacerata Henriksson; Bot. Not. 1915: 244 (1915)
= Corylus avellana var. laciniata (Burchardt) G.Kirchn.; Arbor. Muscav. [Petzold & Kirchner] 2567 (1864)
= Corylus avellana var. laciniata Döll; Rhein. Fl. 273 (1843)
= Corylus avellana var. lambertii Loudon; Arbor. Frutic. Brit. 3: 2018 (1838)
= Corylus avellana var. lata Henriksson; Bot. Not. 1915: 240 (1915)
= Corylus avellana var. latifolia A.DC.; Prodr. [A.P. de Candolle] 16(2): 131 (1864)
= Corylus avellana var. lenticularis Henriksson; Bot. Not. 1931: 214 (1931)
= Corylus avellana var. limbata Henriksson; Bot. Not. 1915: 240 (1915)
= Corylus avellana var. macrotruncus Zernov; Opred. Sosud. Rast. Severa Rossiisk. Prichern. 94 (2002)
= Corylus avellana var. maxima Audib.; Cat. Vég. Audibert 15 (1817)
= Corylus avellana var. mediopurpurea Späth; Nursery Cat. (Späth) 57: 2 (1883)
= Corylus avellana var. menthoides Henriksson; Bot. Not. 1915: 241 (1915)
= Corylus avellana var. microphylla Lej.; Comp. Fl. Belg. 3: 256 (1836)
= Corylus avellana var. mucronata Henriksson; Bot. Not. 1930: 149 (1930)
= Corylus avellana var. nitens Henriksson; Bot. Not. 1927: 157 (1927)
= Corylus avellana var. oblonga G.Andersson; Bot. Not. 1915: 245 (1915)
= Corylus avellana var. obovata Henriksson; Bot. Not. 1915: 245 (1915)
= Corylus avellana var. orbicularia Henriksson; Bot. Not. 1918: 299 (1918)
= Corylus avellana var. ovalis Henriksson; Bot. Not. 1923: 283 (1923)
= Corylus avellana var. ovata Willd.; Sp. Pl., ed. 4 [Willdenow] 4: 470 (1805)
= Corylus avellana var. pectinata Henriksson; Bot. Not. 1915: 246 (1915)
= Corylus avellana var. pendula Nestel; Nestel´s Rosengarten 1869: 17 (1869)
= Corylus avellana var. pilosa Henriksson; Bot. Not. 1930: 149 (1930)
= Corylus avellana var. porrecta Henriksson; Bot. Not. 1931: 214 (1931)
= Corylus avellana var. praefracta Henriksson; Bot. Not. 1918: 297 (1918)
= Corylus avellana var. prominens Henriksson; Bot. Not. 1927: 156 (1927)
= Corylus avellana var. pumila Loudon; Arbor. Frutic. Brit. 3: 2017 (1838)
= Corylus avellana var. pyramidata Henriksson; Bot. Not. 1931: 214 (1931)
= Corylus avellana var. quercifolia Booth ex G.Kirchn.; Arbor. Muscav. [Petzold & Kirchner] 670 (1864)
= Corylus avellana var. racemosa Risso; Hist. Nat. Prod. Eur. Mérid. 2: 331 (1826)
= Corylus avellana var. retusa Henriksson; Bot. Not. 1927: 157 (1927)
= Corylus avellana var. sativa-vulgaris Nois.; Man. Compl. Jard. 2: 464 (1825)
= Corylus avellana var. schizochlamys Spach; Ann. Sci. Nat., Bot., Sér. 2, 16: 106 (1841)
= Corylus avellana var. secalina Henriksson; Bot. Not. 1927: 156 (1927)
= Corylus avellana var. serenyiana (Plusk.) Pluskal; Verh. K.K. Zool.-Bot. Ges. Wien 3(2): 22 (1853)
= Corylus avellana var. silvestris DC.; 308 (1805), nom. inval.
= Corylus avellana var. simlicinerva Henriksson; Bot. Not. 1931: 216 (1931)
= Corylus avellana var. sphaerocarpa Rchb.; Icon. Fl. Germ. Helv. [H.G.L.Reichenbach] 12: 5 (1850)
= Corylus avellana var. striata Willd.; Sp. Pl., ed. 4 [Willdenow] 4: 470 (1805)
= Corylus avellana var. stylifera Henriksson; Bot. Not. 1927: 159 (1927)
= Corylus avellana var. subtecta Henriksson; Bot. Not. 1923: 283 (1923)
= Corylus avellana var. sulcata Henriksson; Bot. Not. 1915: 241 (1915)
= Corylus avellana var. sylvestris Aiton; Hort. Kew. [W.Aiton] 3: 363 (1789), nom. inval.
= Corylus avellana var. sylvestris Ehrh.; 28 (1790)
= Corylus avellana var. taeniensis Henriksson; Bot. Not. 1930: 149 (1930)
= Corylus avellana var. tenuis Loudon; Arbor. Frutic. Brit. 3: 2018 (1838)
= Corylus avellana var. teretiuscula Henriksson; Bot. Not. 1915: 239 (1915)
= Corylus avellana var. truncata Henriksson; Bot. Not. 1915: 247 (1915)
= Corylus avellana var. turgida Henriksson; Bot. Not. 1915: 240 (1915)
= Corylus avellana var. urticifolia (Nois.) A.DC.; Prodr. [A.P. de Candolle] 16(2): 131 (1825)
= Corylus avellana var. urticifolia Jess.; Deut. Excurs.-Fl. 443 (1879)
= Corylus avellana var. variegata A.DC.; Prodr. [A.P. de Candolle] 16(2): 131 (1864)
= Corylus avellana var. velutina Henriksson; Bot. Not. 1915: 240 (1915)
= Corylus avellana var. zimmermannii Hahne; Mitt. Deutsch. Dendrol. Ges. 127 (1903)
= Corylus filicifolia A.DC.; Prodr. [A.P. de Candolle] 16(2): 131 (1869)
= Corylus glandulosa (Godet) Godet; Fl. Jura 639 (1853)
= Corylus grandis (Aiton) Nois.; Man. Compl. Jard. 2: 464 (1825)
= Corylus grandis Dryand.; Hort. Kew. [W. Aiton] 3: 363 (1789)
= Corylus hispanica K.Koch; Deut. Obstgehölze 607 (1867)
= Corylus hispanica Mill. ex D.Rivera & al; Varied. Trad. Frut. Cuenca Río Segura Cat. Etnobot. 1: 37 (1997), nom. illeg.
= Corylus laciniata A.DC.; Prodr. [A.P. de Candolle] 16(2): 131 (1864)
= Corylus laciniata Burchardt; Verh. Vereins Beförd. Gartenbaues Königl. Preuss. Staaten 15: 84 (1841)
= Corylus macrocarpa Jacob-Makoy; Nursery Cat. (L. Jacob-Makoy & Co.) 112: 17 (1868)
= Corylus memorabilis Sennen; Exsicc. (Pl. Esp.) 1928: no. 7082 (1929)
= Corylus ovata Lam. ex Steud.; Nomencl. Bot. [Steudel], ed. 2, 1: 424 (1840)
= Corylus pontica Dochnahl; Sichere Führ. Obstkund. 4: 38 (1860), opus utique oppr.
= Corylus pumila (Loudon) Lodd. ex Loudon; Hort. Brit. [Loudon], Suppl. 3: 523 (1850)
= Corylus quercifolia A.DC.; Prodr. [A.P. de Candolle] 16(2): 131 (1864)
= Corylus serenyiana Pluskal; Oesterr. Bot. Wochenbl. 2: 394 (1852)
= Corylus spicata G.Kirchn.; Arbor. Muscav. [Petzold & Kirchner] 673 (1864)
= Corylus sylvestris Salisb.; Prodr. Stirp. Chap. Allerton 392 (1796)
= Corylus urticifolia (Nois.) Dippel; Handb. Laubholzk. 2: 128 (1891)
variant :
var. pontica (K.Koch) H.J.P.Winkl.; Pflanzenr. [Engler] IV.61, Heft 19 (Betulac.): 47 (1904)
Distribution: Georgia [Caucasus]; NE-Turkey
33 GEO 34 TUR
Synonyms: hidden
= Corylus colurna var. glandulifera (K.Koch) A.DC.; Prodr. [A.P. de Candolle] 16(2): 132 (1864)
= Corylus imeretica Kem.-Nath.; Trudy Tbilissk Bot. Inst. 1: 111 (1934)
= Corylus pontica K.Koch; Linnaea 22: 329 (1849)
= Corylus pontica var. glandulifera K.Koch; Linnaea 22: 330 (1849)
species :
Corylus chinensis Franch.; J. Bot. [Morot] 13(7): 197-198 (1899)
Distribution: China (Gansu, Guizhou, Hubei, Shaanxi, SW-Sichuan, NW-Yunnan); Tibet
36 CHI TIB
Synonyms: hidden
= Corylus chinensis var. macrocarpa Hu; Bull. Fan Mem. Inst. Biol., Bot. 8: 32 (1938)
= Corylus colurna var. chinensis (Franch.) Burkill; J. Linn. Soc., Bot. 26(178): 503 (1899)
= Corylus papyracea Hickel; Bull. Soc. Dendrol. France 94 (1928)
species :
Corylus colchica Albov; Prodr. Fl. Colchic. 219 (1895)
Distribution: Georgia [Caucasus]
33 GEO
species :
Corylus colurna L.; Sp. Pl. [Linnaeus] 999 (1753)
Name: Baum-Hasel (DE); Turkish Hazel (EN)
Distribution: England [I] (England [I], Wales [I], Scotland [I]); Germany [I]; Slovakia; Hungary; Croatia; Bosnia & Hercegovina; Montenegro; Serbia; Kosovo; North Macedonia; Albania; Romania; Bulgaria; European Turkey; Greece (N- & C-Greece, rare Peloponnisos); Northern Caucasus; Georgia [Caucasus] (Abkhazia); Armenia; Azerbaijan; Turkey (Inner Anatolia, N-Anatolia, NW-Anatolia: Bithynia); Iran (EC-Iran, N-Iran)
10 grb 11 ger HUN SLO 13 ALB BIH BUL CRO GRC KOS MNT NMA ROM SRB TUE 33 ARM AZE GEO NCS 34 IRN TUR
Synonyms: hidden
= Corylus abchasica Kem.-Nath.; Zametki Sist. Geogr. Rast. 35: 3 (1978)
= Corylus arborescens Münchh.; Hausvater 3: 826 (1768)
= Corylus avellana f. glomerata (Aiton) W.T.Aiton; Hort. Kew., ed. 2 [W.T.Aiton] 5: 303 (1813)
= Corylus avellana var. arborescens Merrem; 436 (1809)
= Corylus avellana var. glomerata Aiton; Hort. Kew. [W.Aiton] 3: 363 (1789)
= Corylus avellana var. macrochlamys Spach; Ann. Sci. Nat., Bot., Sér. 2, 16: 106 (1841), nom. superfl.
= Corylus bizantina Desf.; Tabl. Ecole Bot., ed. 2: 245 (1815)
= Corylus cervorum Petrov; Byull. Moskovsk. Obshch. Isp. Prír., Otd. Biol. 45: 121 (1936)
= Corylus colurna var. avellanoides Spach; Ann. Sci. Nat., Bot., Sér. 2, 16: 104 (1841)
= Corylus colurna var. brachycarpa Spach; Ann. Sci. Nat., Bot., Sér. 2, 16: 103 (1841)
= Corylus colurna var. glandulifera A.DC.; Prodr. [A.P. de Candolle] 16(2): 132 (1864)
= Corylus colurna var. glandulifera Jess.; Deut. Excurs.-Fl. 444 (1879), nom. illeg.
= Corylus colurna var. leptochlamys Spach; Ann. Sci. Nat., Bot., Sér. 2, 16: 104 (1841)
= Corylus colurna var. macrochlamys Spach; Ann. Sci. Nat., Bot., Sér. 2, 16: 104 (1841)
= Corylus colurna var. trichochlamys Spach; Ann. Sci. Nat., Bot., Sér. 2, 16: 104 (1841)
= Corylus eggrissiensis Kem.-Nath.; Zametki Sist. Geogr. Rast. 35: 6 (1978)
= Corylus glomerata (Aiton) Nois.; Man. Compl. Jard. 2: 464 (1825)
= Corylus iberica var. glandulosa Kem.-Nath.; Trudy Tbilissk. Bot. Inst. 6: 15 (1938)
= Corylus iberica Wittm. ex Bobrov; Sovetsk. Bot., no. 1, 28 (1936)
= Corylus kachetuca Kem.-Nath.; Zametki Sist. Geogr. Rast. 35: 5 (1978)
= Corylus macedonica V.Cordus & Gesner ex Strelin; Realwörterbuch Kameralisten Oekonomen 4: 528 (1788)
= Corylus nana Tourrette & Rozier; Démonstr. Élém. Bot. 3: 448 (1787)
species :
Corylus cornuta Marshall; Arbust. Amer. 37 (1785)
Name: Beaked hazelnut
Distribution: Canada (Alberta, British Columbia, Manitoba, New Brunswick, Newfoundland, Nova Scotia, Ontario, Prince Edward Isl., Québec, Saskatchewan); St. Pierre et Miquelon; USA (Alabama, Colorado, Connecticut, Delaware, Georgia, Iowa, Idaho, Illinois, Massachusetts, Maryland, Maine, Michigan, Minnesota, Montana, North Carolina, North Dakota, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Virginia, Vermont, Washington State, Wisconsin, West Virginia, Wyoming)
71 CDN 72 CDN SPM 73 USA 74 USA 75 USA 78 USA
Synonyms: hidden
= Calycera microphylla Dochnahl; Sichere Führ. Obstkund. 52 (1860), opus utique oppr.
= Corylus cornuta Du Roi ex Steud.; Nomencl. Bot. [Steudel], ed. 1: 229 (1821), nom. illeg.
= Corylus cornuta f. inermis Fernald; Rhodora 38: 76 (1936)
= Corylus cornuta var. megaphylla Vict. & J.Rousseau; Contr. Inst. Bot. Univ. Montréal 36: 13 (1940)
= Corylus mexicana K.Koch; Dendrologie 2(2): 15 (1873)
= Corylus rostrata Aiton; Hort. Kew. [W.Aiton] 3: 364 (1789)
= Corylus rostrata Dippel; Handb. Laubholzk. 2: 132 (1891)
= Rostella americana Dochnahl; Sichere Führ. Obstkund. 51 (1860), opus utique oppr.
= Rostella major Dochnahl; Sichere Führ. Obstkund. 51 (1860), opus utique oppr.
= Rostella praecox Dochnahl; Sichere Führ. Obstkund. 51 (1860), opus utique oppr.
variant :
var. californica (A.DC.) Sharp; Contr. Dudley Herb. 4: 59 (1951)
Name: California hazelnut
Distribution: Canada (British Columbia); USA (California, Oregon, Washington State)
71 CDN 73 USA 76 USA
Synonyms: hidden
= Corylus californica (A.DC.) A.Heller; Bull. Torrey Bot. Club 25: 580 (1898)
= Corylus cornata f. glandulosa (Boivin) T.C.Brayshaw; Occas. Pap. British Columbia Prov. Mus. 18: 157 (1976)
= Corylus cornata var. glandulosa Boivin; Phytologia 15: 420 (1967)
= Corylus cornuta f. glandulosa (B.Boivin) T.C.Brayshaw; Occas. Pap. British Columbia Prov. Mus. 18: 157 (1976)
= Corylus cornuta subsp. californica (A.DC.) A.E.Murray; Kalmia 12: 19 (1982)
= Corylus cornuta var. glandulosa B.Boivin; Phytologia 15: 420 (1967)
= Corylus rostrata var. californica A.DC.; Prodr. [A.P. de Candolle] 16(2): 133 (1864)
= Corylus rostrata var. tracyi Jeps.; Man. Fl. Pl. Calif. [Jepson] 271 (1923)
species :
Corylus fargesii (Franch.) C.K.Schneid.; Ill. Handb. Laubholzk. [C.K.Schneider] 2: 896, f. 561 e (1912)
Distribution: China (S-Gansu, Guizhou, Henan, Hubei, Jiangxi, S-Ningxia, Shaanxi, NE-Sichuan)
36 CHI
Synonyms: hidden
= Corylus mandshurica var. fargesii Burkill; J. Linn. Soc., Bot. 26(178): 505 (1899)
= Corylus rostrata var. fargesii Franch.; J. Bot. [Morot] 13(7): 199-200 (1899)
species :
Corylus ferox Wall.; Pl. Asiat. Rar. [Wallich] 1: 77, pl. 87 (1830)
Distribution: China (Gansu, Guizhou, Hubei, Ningxia, Shaanxi, Sichuan, Yunnan); Tibet; Nepal; Bhutan; NE-India (Arunachal Pradesh, Assam, Manipur, Meghalaya, Mizoram, Nagaland, Sikkim, Tripura, West Bengal); Myanmar
36 CHI TIB 40 BHU IND NEP 41 MYA
variant :
var. tibetica (Batalin) Franch.; J. Bot. [Morot] 13: 200 (1899)
Distribution: China (SE-Gansu, Guizhou, W-Hubei, Ningxia, Shaanxi, E-Sichuan, Yunnan); Tibet
36 CHI TIB
Synonyms: hidden
= Corylus tibetica Batalin; Trudy Imp. S.-Peterburgsk. Bot. Sada 13(1): 102-103 (1893)
species :
Corylus heterophylla Fisch. ex Trautv.; Flora (Regensburg) 17 (1. Beibl.): 24 (1834)
Name: Siberian Hazelnut, Sibirische Haselnuss
Distribution: Siberia (Chita); Russian Far East (Amur, Khabarovsk, Primorye); China (Anhui, Gansu, Guizhou, Hebei, Heilongjiang, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Jilin, Liaoning, Nei Mongol, Ningxia, Shaanxi, Shandong, Shanxi, Sichuan, Zhejiang); North Korea; South Korea; Japan; USA [I] (Connecticut [I])
30 SIB 31 RFE 36 CHI 38 JAP KOR NKO 75 usa
Synonyms: hidden
= Corylus avellana var. davurica Ledeb.; Fl. Ross. [Ledebour] 3: 588 (1850)
= Corylus hasibani Siebold; Kruidk. Naamlijst 27 (1844), nomen
= Corylus heterophylla var. japonica Koidz.; Bot. Mag. (Tokyo) 27: 143 (1913)
= Corylus heterophylla var. shenyungensis L.Zhao & D.Chen; Fl. Liaoningica 1: 1361 (1988)
= Corylus heterophylla var. thunbergii Blume; Ann. Mus. Bot. Lugduno-Batavi 1: 130 (1850)
= Corylus heterophylla var. yezoensis Koidz.; Bot. Mag. (Tokyo) 27: 143 (1913)
= Corylus mongolica K.Koch; Dendrologie 2(2): 13 (1873)
= Corylus tetraphylla Ledeb.; Denkschr. Bayer. Bot. Ges. Regensburg 3 2: 58 (1841), sphalm.
= Corylus thunbergii K.Koch; Dendrologie 2(2): 13 (1873)
= Corylus yezoensis (Koidz.) Nakai; Fl. Sylv. Kor. 2: 2 (1915)
variant :
var. sutchuenensis Franch.; J. Bot. [Morot] 13(7): 199 (1899)
Distribution: China (Anhui, S-Gansu, Guizhou, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Shaanxi, Shandong, NE-Sichuan, Zhejiang)
36 CHI
Synonyms: hidden
= Corylus heterophylla var. crista-galli Burkill; J. Linn. Soc., Bot. 26: 504 (1899)
= Corylus kweichowensis Hu; Bull. Fan Mem. Inst. Biol., Bot., n. s. 1: 149 (1948)
= Corylus kweichowensis var. brevipes W.J.Liang; Bull. Bot. Res., Harbin 8(4): 117 (1988)
= Corylus kweichowensis var. sutchuenensis (Franch.) C.C.Yang; Fl. Sichuan. 21: 5 (2012)
= Corylus sutchuenensis (Franch.) Nakai; J. Jap. Bot. 15: 524 (1939)
species :
Corylus jacquemontii Decne.; Voy. Inde [Jacquemont] 4(Bot.): 160 (1844)
Distribution: Afghanistan (Kunar / Nuristan); Pakistan (Dir, Swat, Hazara); Nepal; NW-India (Himachal Pradesh, Jammu & Kashmir, Uttarakhand, Kumaon)
34 AFG 40 IND NEP PAK
Synonyms: hidden
= Corylus colurna var. lacera A.DC.; Prodr. [A.P. de Candolle] 16(2): 131 (1864)
= Corylus lacera Wall.; Numer. List [Wallich] 2798 (1831), nomen
= Corylus tiliacea Decne.; Voy. Inde [Jacquemont] 4(Bot.): 160 (1844)
species :
Corylus maxima Mill.; Gard. Dict., ed. 8: 2 (1768)
Name: Lambert-Hasel (DE), Filbert (EN)
Distribution: England [I]England [I] (England [I], Wales [I], Isle of Man [I], Scotland [I]); Germany [I]; Austria [I]; Slovakia [I]; Italy; Slovenia; Croatia; Greece [I]; Georgia [Caucasus] [I]; Turkey (N-Anatolia, NE-Anatolia, NW-Anatolia: Bithynia)
11 aut ger slo 13 CRO grc ITA SLV 33 geo 34 TUR
Remarks: probably of hybrid origin. Cultivated for commercial hazelnuts
Synonyms: hidden
= Corylus arborescens G.Gaertn., B.Mey. & Scherb.; Oekon. Fl. Wetterau 3: 376 (1801)
= Corylus atropurpurea Booth; Nursery Cat. (Flottbecker Baumschulen Hamburg) 1845: 45 (1845)
= Corylus avellana subsp. maxima (Willd.) Schübl. & G.Martens; Fl. Würtemberg, ed. 1: 619 (1834)
= Corylus avellana var. maxima (Willd.) Merrem; 436 (1809)
= Corylus avellana var. purpurea Loudon; Encycl. Trees Shrubs 922 (1842)
= Corylus avellana var. rubra (Borkh.) Lam.; Encycl. [J.Lamarck et al.] 5: 496 (1804)
= Corylus avellana var. tubulosa Loudon; Arbor. Frutic. Brit. 3: 2018 (1838)
= Corylus avellana var. viminalis Henriksson; Bot. Not. 1918: 297 (1918)
= Corylus balcana f. atropurpurea P.D.Sell; Fl. Gr. Brit. Ireland 1: 685 (2018)
= Corylus balcana P.D.Sell; Fl. Gr. Brit. Ireland 1: 685 (2018)
= Corylus intermedia Fingerh.; Linnaea 4: 385 (1829)
= Corylus maxima f. atropurpurea (Booth) Dippel; Handb. Laubholzk. 2: 130 (1891), nom. superfl.
= Corylus maxima f. atropurpurea Dochnahl; Sichere Führ. Obstkund. 49 (1860)
= Corylus maxima f. purpurea (Loudon) C.K.Schneid.; Ill. Handb. Laubholzk. [C.K.Schneider] 1: 149 (1904)
= Corylus maxima var. alba (Aiton) C.K.Schneid.; Ill. Handb. Laubholzk. [C.K.Schneider] 1: 149 (1904)
= Corylus maxima var. atropurpurea Bean; Trees & Shrubs Brit. Isles 1: 403 (1921), nom. illeg.
= Corylus maxima var. purpurea (Loudon) Rehder; Man. Cult. Trees 154 (1927)
= Corylus maxima var. rubra (Aiton) C.K.Schneid.; Ill. Handb. Laubholzk. [C.K.Schneider] 1: 149 (1904)
= Corylus purpurea Dochnahl; Sichere Führ. Obstkund. 49 (1860), opus utique oppr.
= Corylus rubra (Aiton) Borkh.; Theor. Prakt. Handb. Forstbot. 1: 723 (1800)
= Corylus sativa Poit. & Turpin; Pomol. Franç. 4: t. 11 (1846), nom. superfl.
= Corylus tubulosa subsp. alba (Aiton) Schübl. & G.Martens; Fl. Würtemberg, ed. 1: 619 (1834)
= Corylus tubulosa var. atropurpurea (Booth) A.DC.; Prodr. [A.P. de Candolle] 16(2): 132 (1864), nom. superfl.
= Corylus tubulosa var. colurna Risso; Hist. Nat. Prod. Eur. Mérid. 2: 333 (1826)
= Corylus tubulosa var. oblonga Risso; Hist. Nat. Prod. Eur. Mérid. 2: 332 (1826)
= Corylus tubulosa var. purpurea (Loudon) Spach; Ann. Sci. Nat., Bot., Sér. 2, 16: 107 (1841)
= Corylus tubulosa var. rubra Risso; Hist. Nat. Prod. Eur. Mérid. 2: 333 (1826)
= Corylus tubulosa Willd.; Sp. Pl., ed. 4 [Willdenow] 4: 470 (1805), nom. superfl.
= Lopima alba (Aiton) Dochnahl; Sichere Führ. Obstkund. 47 (1860), opus utique oppr.
= Lopima amygdalacca Dochnahl; Sichere Führ. Obstkund. 50 (1860), opus utique oppr.
= Lopima anglicana Dochnahl; Sichere Führ. Obstkund. 50 (1860), opus utique oppr.
= Lopima atropurpurea (Booth) Dochnahl; Sichere Führ. Obstkund. 49 (1860), opus utique oppr.
= Lopima caesia Dochnahl; Sichere Führ. Obstkund. 50 (1860), opus utique oppr.
= Lopima downtonensis Dochnahl; Sichere Führ. Obstkund. 50 (1860), opus utique oppr.
= Lopima hempelii Dochnahl; Sichere Führ. Obstkund. 50 (1860), opus utique oppr.
= Lopima hispanica Dochnahl; Sichere Führ. Obstkund. 50 (1860), opus utique oppr.
= Lopima rubra Dochnahl; Sichere Führ. Obstkund. 48 (1860), opus utique oppr.
= Lopima vittata Dochnahl; Sichere Führ. Obstkund. 50 (1860), opus utique oppr.
species :
Corylus potaninii Bobrov; Sovetsk. Bot. 1936(1): 29 (1936)
Distribution: SW-China
36 CHI
species :
Corylus sieboldiana Blume; Mus. Bot. 1: 310 (1851)
Distribution: South Korea (incl. Ulleung Isl., Cheju Isl.); Japan
38 JAP KOR
Synonyms: hidden
= Corylus brevirostris (C.K.Schneid.) Miyabe; J. Fac. Agric. Hokkaido Imp. Univ. 26: 458 (1934)
= Corylus hallaisanensis Nakai; Repert. Spec. Nov. Regni Veg. 13: 250 (1914)
= Corylus heterophylla var. sieboldiana (Blume) A.DC.; Prodr. [A.P. de Candolle] 16(2): 130 (1864)
= Corylus rostrata var. mitis Maxim.; Bull. Acad. Imp. Sci. St.-Pétersbourg 27: 539 (1881)
= Corylus rostrata var. sieboldiana (Blume) Maxim.; Bull. Acad. Imp. Sci. St.-Pétersbourg 27: 538 (1881)
= Corylus sieboldiana var. brevirostris C.K.Schneid.; Pl. Wilson. [Sargent] 2: 453 (1916)
= Corylus sieboldiana var. hallaisanensis (Nakai) M.Kim; Korean Endemic Pl. 72 (2004)
= Corylus sieboldiana var. mitis (Maxim.) C.K.Schneid.; Pl. Wilson. [Sargent] 2: 453 (1916)
variant :
var. mandshurica (Maxim.) C.K.Schneid.; Pl. Wilson. [Sargent] 2(3): 454 (1916)
Distribution: Siberia (Chita); Russian Far East (Amur, Khabarovsk, Primorye); China (Gansu, Hebei, Heilongjiang, Henan, Jilin, Liaoning, Nei Mongol, Shaanxi, Sichuan); North Korea; South Korea; Japan
30 SIB 31 RFE 36 CHI 38 JAP KOR NKO
Synonyms: hidden
= Corylus brevituba Kom.; Izv. Glavn. Bot. Sada S.S.S.R. 28: 219 (1929)
= Corylus mandshurica f. brevituba (Kom.) Kitag.; Neolin. Fl. Manshur. 217 (1979)
= Corylus mandshurica f. glandulosa S.L.Tung; Bull. Bot. Res., Harbin 1(1-2): 138 (1981)
= Corylus mandshurica Maxim.; Bull. Cl. Phys.-Math. Acad. Imp. Sci. St.-Pétersbourg 15: 137 (1856)
= Corylus rostrata f. mandshurica (Maxim.) Regel; Mém. Acad. Imp. Sci. St.-Pétersbourg, Sér. 7, 4(4): 129 (1861)
= Corylus rostrata var. mandshurica (Maxim.) Regel; Bull. Cl. Phys.-Math. Acad. Imp. Sci. St.-Pétersbourg 15: 221 (1857)
species :
Corylus wangii Hu; Bull. Fan Mem. Inst. Biol., Bot. 8: 31 (1938)
Distribution: China (NW-Yunnan)
36 CHI
Conservation Status: Endangered
species :
Corylus wulingensis Q.X.Liu & C.M.Zhang; Bull. Bot. Res., Harbin 10(1): 3.5 (1990)
Distribution: China (Hunan)
36 CHI
species :
Corylus yunnanensis (Franch.) A.Camus; Bull. Mus. Natl. Hist. Nat., Sér. 2, 1: 448 (1928)
Distribution: China (W-Guizhou, Hubei, SW-Sichuan, W-Sichuan, W-Yunnan)
36 CHI
Synonyms: hidden
= Corylus heterophylla var. yunnanensis Franch.; J. Bot. [Morot] 13(7): 198-199 (1899)
species :
Corylus ×colurnoides C.K.Schneid.; Ill. Handb. Laubholzk. [C.K.Schneider] 1: 145 (1906)
Distribution: Germany [I]; Transcaucasus
11 ger
Remarks: Corylus avellana x colurna
Synonyms: hidden
= Corylus ×fominii Kem.-Nath.; Trudy Tbilissk. Bot. Inst. 6: 15 (1938)
= Corylus ×gudarethica Kem.-Nath.; Trudy Tbilissk. Bot. Inst. 6: 17 (1938)
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A complete, synonymic checklist of the Higher Plants of the World

Version 25.03 (March 6th, 2025)

Covering 356,112 accepted species,
8,776 hybrids, 48,085 accepted infraspecific taxa and 1,002,454 synonyms,
in total 1,415,427* names

[*about 25,000 dubious, "unplaced" names and about 4,000 invalid names (Art. 24.3) like "typicus" are deliberately omitted]

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