Alnus glutinosa f. incisa (Willd.) H.J.P.Winkl. form synonym

Alnus autumnalis Hartig species homotypic synonym

Alnus frangula L. ex Huth species doubtful

Alnus glutinosa var. cylindrostachya H.J.P.Winkl. variety synonym

Alnus emarginata Shirai species heterotypic synonym

Alnus vulgaris Druce, 1914 species synonym

Alnus hirsuta Turcz. species doubtful

Duschekia sinuata subsp. kamtschatica Holub subspecies synonym

Alnus multinervis (Regel) Callier ex C.K.Schneid. species synonym

Alnus crispa var. stragula Fernald variety synonym

Alnaster pendulus (Matsumura) Czerep., 1955 species homotypic synonym

Alnus incana var. glauca Regel variety heterotypic synonym

Alnus viridis subsp. maximowiczii (Callier) Hult. subspecies synonym

Betula serrulata Aiton species synonym

Alnus pubescens Sart., 1816 species synonym

Alnus glutinosa Medik. species doubtful

Alnus serrulata var. serrulata variety synonym

Alnus oblongata var. elliptica Corrie variety synonym

Alnus maritime (Marshall) Muhl. species homotypic synonym

Duschekia mandschurica (Callier) Pouzar species synonym

Alnus fruticosa f. rufinervis (Nakai) T.B.Lee form synonym

Alnus alnobetula subsp. maximowiczii (Callier) Chery subspecies synonym

Alnus undulata hort. ex H.J.P.Winkl. species synonym

Betula alnus subsp. glutinosa (L.) Ehrh. subspecies synonym

Alnus maritime (Marshall) Muhl. ex Nutt. species synonym

Alnus incana f. hirsuta Regel form synonym

Alnus ×borealis var. latifolia Nakai variety synonym

Alnus ×borealis var. koreana (Callier) Nakai variety synonym

Alnus fruticosa var. mandschurica Callier variety synonym

Alnus ×aschersoniana var. pomeranica Callier variety synonym

Alnus mandschurica var. pubescens (Nakai) A.I.Baranov variety synonym

Alnus undulata hort. species homotypic synonym

Alnus japonica var. rufa Nakai variety synonym

Alnus glutinosa × incana species accepted

Alnus glutinosa x incana species accepted

Alnus oblongata Kotschy ex Regel species heterotypic synonym

Alnus ×incanoides H.Lév., 1915 species synonym

Alnus glutinosa var. incisa (Willd.) Regel variety synonym

Alnus communis Desf., 1804 species synonym

Betula viridis Vill. species synonym

Alnus macrocarpa Lodd. ex Loudon species synonym

Alnus emarginata Krock. ex Steud., 1821 species accepted

Alnus boshia Buchanan-Hamilton ex D.Don species synonym

Alnus cordata Desf. species synonym

Betula oblongata Aiton species synonym

Alnus integrifolia Roxb. ex Pax & K.Hoffm. species accepted

Alnus rubra Desf. ex Corrie species heterotypic synonym

Alnus rubra var. rubra variety synonym

Alnus tomentosa Hartig ex Regel, 1868 species accepted

Alnus ×hybrida hort. ex Dippel species accepted

Alnus ×badensis Láng ex Regel, 1864 species accepted

Alnaster firmus (Siebold & Zucc.) Czerep., 1955 species homotypic synonym

Alnus incana var. argentea Norrl. variety synonym

Alnus longifolia Bové species homotypic synonym

Alnus lanata Duthie species homotypic synonym

Alnus xpubescens Tausch species synonym

Alnus serrata Newberry, 1868 species doubtful

Alnus boshia Buchanan-Hamilton species homotypic synonym

Alnus barbata Fries species homotypic synonym

Alnus frangula L. species homotypic synonym

Alnus ×badensis Láng species homotypic synonym

Alnus ovata Lange species homotypic synonym

Alnaster cernuus Schweinf. species homotypic synonym

Alnus glutinosa f. laciniata Willd. form synonym

Betula-alnus maritima Marshall species synonym

Alnus fruticosa var. mandshurica Callier ex C.K.Schneid. variety synonym

Alnus glutinosa f. macrocarpa Req. form synonym

Alnus glutinosa var. laciniata (Willd.) Regel variety synonym

Alnus obtusifolia Mert. ex Regel species doubtful

Alnaster manshuricus Jarm. species synonym

Alnus maritima var. metoporina (Furlow) A.E.Murray variety synonym

Alnus serrulata f. serrulata form synonym

Alnus jorullensis Benth. species synonym

Alnus dolichocarpa H.Zare, Amini & Assadi species accepted

Alnus ovata Lange ex Kjellm. species accepted

Alnus ×fiekii var. dressleri Callier variety synonym

Alnus alnobetula x Alnus incana species accepted

Alnus betulifolia G.Y.Li, Z.H.Chen & D.D.Ma species accepted

Alnus rohlenae Vít, Douda & Mandák species accepted

Alnus lusitanica Vít, Douda & Mandák species accepted

Alnus corylifolia Kerner ex Strobl, 1881 species accepted

Alnus japonica var. serrata Nakai variety synonym

Clethropis nitida Spach species synonym

Betula alnus var. glutinosa Gaertn variety synonym

Alnus japonica f. serrata (Nakai) M.Kim form synonym

Alnus poolensis Chandler, 1963 species accepted

Alnus glutinosa subsp. badensis (Láng ex Hagenb.) Regel subspecies synonym

Alnus ×pseudoglutinosa Dostál species doubtful

Alnus glutinosa subsp. californica Regel subspecies synonym

Alnus glutinosa subsp. pubescens (Tausch) Regel subspecies synonym

Alnus glutinosa subsp. obtusifolia Regel subspecies synonym

Alnus incana var. lobata Wittr. variety synonym

Alnus viridis subsp. bernardiensis Chodat subspecies synonym

Alnus maritima subsp. formosana Burkill subspecies synonym

Betula alnus var. rugosa DuRoi variety synonym

Betula alnobetula (Ehrh.) K.Koch species synonym

Alnus serrulata var. pumila Decker variety synonym

Alnus japonica subsp. formosana (Burkill) Callier subspecies synonym

Alnus americana Ettingshausen, 1883 species accepted

Alnus rhamnifolia Nuttall, 1911 species accepted

Alnus rugosa Koch, 1872 species accepted

Alnites unequilateralis (Lesquereux, 1875) species accepted

Alnus carpinifolia Lesquereux, 1888 species accepted

Alnus grewiopsis Ward, 1885 species accepted

Alnus auraria Knowlton & Cockerell, 1919 species accepted

Alnus grandiflora Newberry, 1882 species accepted

Alnus macrodonta Knowlton, 1902 species accepted

Alnus scalariforme Srivastava & Suzuki, 2001 species accepted

Alnus corrallina Lesquereux, 1883 species accepted

Alnus kefersteinii (Göppert, 1837) species synonym

Alnus rugosa Lesquereux, 1888 species synonym

Alnus cordata Lesquereux, 1883 species synonym

Alnus corylina Lesquereux, 1882 species synonym

Alnus inaequilateralis (Lesquereux, 1875) species synonym

Alnus vermicularis Nakai species accepted

Alnus ×hanedae Suyinata species accepted

Alnaster ×hanedae (Suyinata) Murai species synonym

Alnus lanata Duthie ex Bean species accepted

Cremastogyne lanata (Duthie ex Bean) Czerep. species synonym

Alnus hirsuta (Spach) Rupr. species accepted

Alnus tinctoria f. hirsutoides (Koidz.) H.Hara form synonym

Alnus sibirica f. glabra (Callier) Koidz. form synonym

Alnus hirsuta var. microphylla (Nakai) Tatew. variety synonym

Alnus sibirica (Spach) Turcz. ex Kom. species synonym

Alnus tinctoria var. velutina H.Hara variety synonym

Alnus sibirica var. oxyloba C.K.Schneid. variety synonym

Alnus sibirica var. tinctoria (Sarg.) Koidz. variety synonym

Alnus hirsuta f. macrophylla Callier form synonym

Alnus sibirica f. acutiloba Koidz. form synonym

Alnus tinctoria var. mandschurica Callier variety synonym

Alnus tinctoria f. acutiloba (Koidz.) H.Hara form synonym

Alnus incana subsp. hirsuta (Spach) Á.Löve & D.Löve subspecies synonym

Alnus tinctoria var. glabra Callier variety synonym

Alnus tinctoria Sarg. species synonym

Alnus tinctoria var. microphylla Nakai variety synonym

Alnus hirsuta var. sibirica (Spach) C.K.Schneid. variety synonym

Alnus inokumae Murai & Kusaka species synonym

Alnus sibirica f. obtusiloba Koidz. form synonym

Alnus tinctoria var. obtusiloba Callier variety synonym

Alnus incana var. sibirica Spach variety synonym

Alnus incana var. tinctoria (Sarg.) H.J.P.Winkl. variety synonym

Alnus sibirica f. hirsutoides Koidz. form synonym

Alnus sibirica var. hirsuta (Spach) Koidz. variety synonym

Alnus hirsuta f. inokumae (Murai & Kusaka) H.Ohba form synonym

Alnus sibirica var. paucinervis C.K.Schneid. variety synonym

Alnus acuminata Kunth species accepted

Alnus jorullensis Kunth species accepted

Alnus jorullensis var. acuminata (Kunth) Kuntze variety synonym

Alnus mairei H.Lév. species accepted

Alnus ferdinandi-coburgii C.K.Schneid. species accepted

Cremastogyne ferdinandi-coburgii (C.K.Schneid.) Czerep. species synonym

Alnus rubra Bong. species accepted

Alnus rubra var. pinnatisecta Starker variety synonym

Alnus oregana Nutt. species synonym

Alnus glutinosa f. quercifolia Willd. form synonym

Alnus ×fallacina Callier species accepted

Alnus henryi C.K.Schneid. species accepted

Alnus cremastogyne Burkill species accepted

Cremastogyne longipes Czerep. species synonym

Alnus formosana (Burkill) Makino species accepted

Alnus japonica var. formosana (Burkill) Callier variety synonym

Alnus maritima var. formosana Burkill variety synonym

Alnus nepalensis D.Don species accepted

Clethropsis nepalensis (D.Don) Spach species synonym

Alnus trabeculosa Hand.-Mazz. species accepted

Alnus trabeculosa var. nagurae (Inokuma) Murai variety synonym

Alnus trabeculosa var. hunanensis S.B.Wan variety synonym

Alnus jackii Hu species synonym

Alnus nagurae Inokuma species synonym

Alnus japonica (Thunb.) Steud. species accepted

Alnus japonica var. arguta (Regel) Callier variety synonym

Alnus japonica var. villosa L.Zhao & D.Chen variety synonym

Alnus reginosa Nakai species synonym

Alnus japonica var. koreana Callier variety synonym

Alnus maritima var. arguta Regel variety synonym

Alnus japonica var. latifolia Callier variety synonym

Alnus harinoki Siebold species synonym

Alnus maritima var. japonica (Thunb.) Regel variety synonym

Alnus japonica var. rufinervis Honda variety synonym

Alnus japonica var. minor Miq. variety synonym

Alnus rhombifolia Nutt. species accepted

Alnus californica (Regel) H.J.P.Winkl. species synonym

Alnus rhombifolia var. ovalis H.J.P.Winkl. variety synonym

Alnus rhombifolia var. typica Callier variety synonym

Alnus rhombifolia var. bernardina Munz & I.M.Johnst. variety synonym

Alnus glutinosa (L.) Gaertn. species accepted

Alnus imperialis Dippel species synonym

Alnus vulgaris Hill species synonym

Alnus glutinosa f. rubrinervia Dippel form synonym

Alnus macrocarpa Req. ex Nyman species heterotypic synonym

Alnus glutinosa f. aurea Verschaff. ex Dippel form synonym

Alnus glutinosa f. sorbifolia Dippel form synonym

Alnus glutinosa f. imperialis Dippel form synonym

Alnus rotundifolia Bertol. species heterotypic synonym

Alnus laciniata Ehrh. species doubtful

Alnus aurea K.Koch species synonym

Alnus glutinosa f. parvifolia Kuntze form synonym

Alnus ×hosoii Mizush. species accepted

Alnaster ×hosoii (Mizush.) Murai species synonym

Alnus pumila Steud. species synonym

Duschekia alnobetula (Ehrh.) Pouzar species synonym

Alnus alnobetula var. genuina Regel variety synonym

Alnus ×mayrii Callier species accepted

Alnus ×borealis Koidz. species synonym

Alnus ×mayrii var. intermedia H.Hara variety synonym

Alnus ×nikolskensis Mandl species synonym

Alnus ×mayrii var. glabrescens Nakai variety synonym

Alnus japonica var. borealis (Koidz.) S.L.Tung variety synonym

Alnus acuminata var. jorullensis (Kunth) Regel variety synonym

Alnus maximowiczii Callier species accepted

Alnaster maximowiczii (Callier) Czerep. species synonym

Alnaster crispus subsp. maximowiczii (Callier) Murai subspecies synonym

Alnus viridis subsp. maximowiczii (Callier ex C.K.Schneid.) H.Ohba subspecies synonym

Alnaster crispus var. sachalinensis (Koidz.) Murai variety synonym

Alnus crispa var. sachalinensis (Koidz.) H.Hara variety synonym

Alnus fruticosa var. sachalinensis Koidz. variety synonym

Duschekia maximowiczii (Callier) Pouzar species synonym

Alnus maximowiczii var. sachalinensis (Koidz.) Nemoto variety synonym

Alnus crispa subsp. maximowiczii (Callier) Hultén subspecies synonym

Alnus incana var. pinnatifida Regel variety synonym

Alnus ×intermedia K.Koch species synonym

Alnus incana f. bipinnatifida Brenner form synonym

Alnus incana var. glabrescens Spach variety synonym

Alnus incana var. rubra (Bong.) Regel variety synonym

Alnus incana f. acutiloba Callier form synonym

Alnus canadensis Lodd. ex Loudon species synonym

Alnus americana K.Koch species heterotypic synonym

Alnus februaria var. incana (L.) Kuntze variety synonym

Alnus ×elliptica Req. species accepted

Alnus glutinosa subsp. elliptica (Req.) Nyman subspecies synonym

Alnus firma Siebold & Zucc. species accepted

Alnaster firmus (Siebold & Zucc.) Murai species synonym

Duschekia firma (Siebold & Zucc.) Pouzar species synonym

Alnus yasha var. macrocarpa Callier variety synonym

Alnus firma f. hirtella (Franch. & Sav.) H.Ohba form synonym

Alnaster firmus var. hirtellus (Franch. & Sav.) Murai variety synonym

Alnus yasha Matsum. species synonym

Alnus yasha var. microcarpa Callier variety synonym

Alnus hirtella (Franch. & Sav.) Koidz. species synonym

Alnus firma var. yasha (Matsum.) H.J.P.Winkl. variety synonym

Alnus mandshurica (Callier) Hand.-Mazz. species accepted

Alnus mandshurica f. pubescens (Nakai) Kitag. form synonym

Alnus fruticosa var. pubescens Nakai variety synonym

Alnus fruticosa f. barbinervis Nakai form synonym

Alnus fruticosa var. manschurica Callier ex Kom. variety synonym

Alnus mandshurica f. barbinervis (Nakai) W.Lee form synonym

Alnus fruticosa f. grandifolia Callier form synonym

Alnus fruticosa var. mandshurica Callier variety synonym

Alnus fruticosa var. rufinervis Nakai variety synonym

Duschekia manschurica (Callier ex Kom.) Pouzar species synonym

Alnus serrulatoides Callier species accepted

Alnus katoana Yanagita species synonym

Alnus obtusata (Franch. & Sav.) Makino species synonym

Alnus serrulatoides var. katoana (Yanagita) Sugim. variety synonym

Alnus glutinosa var. obtusata (Franch. & Sav.) H.J.P.Winkl. variety synonym

Alnus maritima var. obtusata Franch. & Sav. variety synonym

Alnus glutinosa var. japonica Matsum. variety synonym

Alnus oblongifolia Torr. species accepted

Alnus serrulata var. oblongifolia (Torr.) Regel variety synonym

Alnus pendula Matsum. species accepted

Alnus multinervis (Regel) Callier species synonym

Alnus multinervis var. nikkoensis Callier variety synonym

Alnus firma var. multinervis Regel variety synonym

Alnaster pendulus (Matsum.) Murai species synonym

Duschekia pendula (Matsum.) Holub species synonym

Alnus sieboldiana Matsum. species accepted

Alnus firma var. sieboldiana (Matsum.) H.J.P.Winkl. variety synonym

Alnaster sieboldianus (Matsum.) Murai species synonym

Duschekia sieboldiana (Matsum.) Holub species synonym

Alnus serrulata (Aiton) Willd. species accepted

Alnus serrulata f. mollescens Fernald form synonym

Alnus noveboracensis Britton species synonym

Alnus incana var. serrulata (Aiton) B.Boivin variety synonym

Alnus serrulata var. vulgaris Fernald variety synonym

Alnus latifolia Desf. species synonym

Alnus glutinosa var. serrulata (Aiton) Regel variety synonym

Alnus macrophylla Desf. ex Steud. species synonym

Alnus rugosa var. obtusifolia (Regel) H.J.P.Winkl. variety synonym

Alnus serrulata f. emarginata Fernald form synonym

Alnus serrulata var. macrophylla Spach variety synonym

Alnus serrulata f. noveboracensis (Britton) Fernald form synonym

Alnus glutinosa var. autumnalis Kuntze variety synonym

Alnus serrulata var. obtusifolia (Regel) Regel variety synonym

Alnus serrulata var. subelliptica Fernald variety synonym

Alnus autumnalis Hartig ex Garcke species synonym

Alnus oblongata (Aiton) Willd. species heterotypic synonym

Alnus serrulata f. nanella Fernald form synonym

Alnus rugosa var. serrulata (Aiton) H.J.P.Winkl. variety synonym

Alnus nitida (Spach) Endl. species accepted

Clethropsis nitida Spach species synonym

Alnus orientalis Decne. species accepted

Alnus orientalis var. ovalifolia H.J.P.Winkl. variety synonym

Alnus orientalis f. winkleri Callier form synonym

Alnus orientalis f. puberula Callier form synonym

Alnus orientalis var. longifolia H.J.P.Winkl. variety synonym

Alnus orientalis var. weissii H.J.P.Winkl. variety synonym

Alnus orientalis var. pubescens Dippel variety synonym

Alnus longifolia Bové ex Spach species synonym

Alnus orientalis f. tomentosa (Hartig) H.J.P.Winkl. form synonym

Alnus tomentosa Hartig species synonym

Alnus subcordata C.A.Mey. species accepted

Alnus tiliifolia K.Koch species synonym

Alnus cordifolia var. villosa Regel variety synonym

Alnus subcordata var. villosa (Regel) H.J.P.Winkl. variety synonym

Alnus cordata var. tschmela Sommier & Levier variety synonym

Alnus cordifolia var. subcordata (C.A.Mey.) Regel variety synonym

Alnus ×peculiaris Hiyama species accepted

Alnaster ×peculiaris (Hiyama) Murai species synonym

Alnus ×pubescens Tausch species accepted

Alnus ×beckii Callier species synonym

Alnus ×spuria f. viridior Callier form synonym

Alnus ×balatonialis Borbás species synonym

Alnus ×montana Brügger species synonym

Alnus ×hybrida A.Braun ex Rchb. species synonym

Alnus ×spuria subsp. beckii (Callier) H.J.P.Winkl. subspecies synonym

Alnus ×spuria var. intermedia Callier variety synonym

Alnus ×hybrida var. pomeranica Callier variety synonym

Alnus ×tauschiana Callier species synonym

Alnus ×spuria Callier species synonym

Alnus ×badensis Láng ex Hagenb. species synonym

Alnus ×tauschiana var. hybrida Callier variety synonym

Alnus ×hybrida var. viridior (Callier) Callier variety synonym

Alnus ×beckii var. figertii Callier variety synonym

Alnus ×spuria subsp. tauschiana (Callier) H.J.P.Winkl. subspecies synonym

Alnus ×ambigua Beck species synonym

Alnus glutipes (Jarm. ex Czerpek) Vorosch. species accepted

Alnaster glutipes Jarm. ex Czerpek species synonym

Duschekia glutipes (Jarm. ex Czerpek) Pouzar species synonym

Alnus hakkodensis Hayashi species accepted

Alnus matsumurae Callier species accepted

Alnus incana var. emarginata Matsum. variety synonym

Alnus hirsuta var. emarginata (Shirai) Kudô variety synonym

Alnus maritima (Marshall) Muhl. ex Nutt. species accepted

Alnus metoporina Furlow species synonym

Betula-Alnus maritima Marshall species synonym

Alnus maritima subsp. oklahomensis J.A.Schrad. & W.R.Graves subspecies synonym

Alnus maritima subsp. metoporina (Furlow) A.E.Murray subspecies synonym

Alnus maritima subsp. georgiensis J.A.Schrad. & W.R.Graves subspecies synonym

Alnus fauriei H.Lév. & Vaniot species accepted

Alnus schneideri Callier species synonym

Alnus glutinosa var. cylindrostachys H.J.P.Winkl. variety synonym

Alnus cylindrostachya (H.J.P.Winkl.) Makino species synonym

Alnus paniculata Nakai species accepted

Alnus ×suginoi Sugim. species accepted

Alnus cordata (Loisel.) Duby species accepted

Alnus obcordata C.A.Mey. ex Steud. species synonym

Alnus cordifolia var. rotundifolia Regel variety synonym

Alnus neapolitana Savi species synonym

Alnus cordata var. rotundifolia Dippel variety synonym

Alnus cordifolia Ten. species synonym

Alnus cordata f. parvifolia Callier form synonym

Alnus nervosus Dippel species synonym

Alnus mandschurica (Callier) Hand.-Mazz. species accepted

Alnus ×ljungeri Murai species doubtful

Alnus repens Wormsk. species accepted

Alnus macrophylla Desf. ex Spach species synonym

Betula incana (L.) Pall., 1784 species synonym

Alnus djavanshirii H.Zare species accepted

Alnus dimitrovii Jordanov & Kitanov species doubtful

Alnus oxyacantha Lavalle species doubtful

Betula-alnus rubra Marshall species doubtful

Alnus obtusifolia Royle, 1839 species accepted

Alnus oblongifrons Borbás ex Callier, 1911 species accepted

Alnus vilmoriana Lebas species doubtful

Alnus ×aschersoniana Callier species accepted

Alnus subrotunda Desf. species doubtful

Alnus ×spaethii Callier species accepted

Alnus glutinosa f. corticiformis Molskii ex Sicinski & Filipiak form synonym

Alnobetula viridis Schur species synonym

Alnus ×silesiaca Fiek species accepted

Alnus gigantea Nakai species doubtful

Alnus mandschurica f. pubescens (Nakai) Kitag. form synonym

Alnus mandschurica f. barbinervis (Nakai) W.Lee form synonym

Alnus lobata Nyman species doubtful

Alnus serrata hort. ex Lavallée, 1877 species accepted

Alnus lanuginosa Gilib., 1792 species synonym

Alnus figerti Callier species doubtful

Duschekia kamschatica (Callier) Pouzar species doubtful

Alnus ×koehnei Callier species doubtful

Alnus elongata Royle, 1839 species accepted

Alnus vulgaris Pers., 1807 species accepted

Alnus incana (L.) Medik., 1800 species synonym

Alnus crispa hort. ex Steud., 1840 species accepted

Alnus ×mayrii Callier ex C.K.Schneid. species doubtful

Alnus japonica Siebold & Zucc. species synonym

Alnus glutinosa f. quercifolia (Willd.) H.J.P.Winkl. form synonym

Duschekia mandshurica (Callier ex C.K.Schneider) Pouzar. species synonym

Alnus arguta Benth., 1857 species accepted

Alnus rubra Desf. ex Steud. species synonym

Alnus barbata Fries ex Nyman, 1881 species accepted

Alnus hanedae Sugimoto species doubtful

Alnus sibirica Fischer ex Turczaninow species synonym

Alnus ×silesiaca var. macrocarpa Callier variety synonym

Alnus glutinosa f. pyramidalis Dippel form synonym

Betula japonica Thunb. species heterotypic synonym

Betula glutinosa (L.) Lam. species heterotypic synonym

Betula leptostachya Wall. species synonym

Betula leptophylla Regel species synonym

Betula alnus var. glutinosa L. variety synonym

Betula alnobetula Ehrh. species synonym

Betula incana (L.) L.f. species synonym

Betula alnus var. incana L. variety synonym

Betula alnus var. serrulata (Aiton) Michx. variety synonym

Betula longifolia Bové ex Spach species synonym

Betula cordata Loisel. species synonym

Alnus oblongata var. oblonga Regel variety synonym

Alnus ×hybrida var. pubescens (Tausch) Callier variety synonym

Alnus ×spuria var. hybrida Callier variety synonym

Alnus ×spuria var. figertii Callier variety synonym

Alnus glutinosa var. pubescens (Tausch) Regel variety synonym

Alnus ×hybrida var. intermedia (Callier) Callier variety synonym

Alnus ×hybrida f. badensis (Láng ex Hagenb.) Callier form synonym

Alnus incana var. pubescens (Tausch) Zumagl. variety synonym

Alnus acuminata var. genuina Regel variety synonym

Alnus glutinosa var. oblongata (Aiton) Pers. variety synonym

Alnus glutinosa var. incana (L.) Pers. variety synonym

Alnus glutinosa f. longipediculata A.Br. ex H.J.P.Winkl. form synonym

Alnus glutinosa var. vulgaris Spach variety synonym

Alnus japonica var. genuina Callier variety synonym

Alnus japonica var. reginosa Nakai variety synonym

Alnus jorullensis var. typica Regel variety synonym

Alnaster crispus var. maximowiczii (Callier) Murai variety synonym

Alnus rubra f. pinnatisecta (Starker) Rehder form synonym

Alnus glutinosa f. incisa Willd. form synonym

Alnus incana var. hirsuta Spach variety synonym

Alnus hirsuta f. sibirica (Spach) H.Ohba form synonym

Alnus firma subsp. hirtella (Franch. & Sav.) C.K.Schneid. subspecies synonym

Alnus firma var. hirtella Franch. & Sav. variety synonym

Alnus mandshurica var. pubescens (Nakai) A.I.Baranov variety synonym

Alnus serrulatoides f. katoana (Yanagita) H.Ohba form synonym

Alnus incana var. bipinnatifida (Brenner) Tzvelev variety synonym

Alnus japonica f. koreana (Callier) H.Ohba form synonym

Alnus japonica f. arguta (Regel) H.Ohba form synonym

Alnus oregona var. pinnatisecta Starker variety synonym

Alnus oregona Nutt. species synonym

Alnus ×purpusii Callier species doubtful

Alnus ×beckii var. ambigua Callier variety synonym

Alnus viridis subsp. maximowiczii (Callier) D.Löve subspecies synonym

Alnus macrophylla Desf. ex Corrie species synonym

Alnus glutinosa f. longipediculata A.Br. form homotypic synonym

Alnus fruticosa var. manschurica Callier variety homotypic synonym

Alnus ×hybrida hort. species homotypic synonym

Alnus macrophylla Desf. species homotypic synonym

Betula longifolia Bové species homotypic synonym

Alnus muelleri Ettingshausen, 1883 species accepted

Alnus maritima (Marshall) Muhl. species homotypic synonym

Alnus rubra Desf. species homotypic synonym

Alnus obcordata C.A.Mey. species homotypic synonym

Alnus glutinosa f. aurea Verschaff. form homotypic synonym

Alnus glutinosa f. corticiformis Molskii form homotypic synonym

Alnus crispa hort. species homotypic synonym

Alnus sibirica Fischer species homotypic synonym

Alnus obtusifolia Mert. species homotypic synonym

Alnus rotundifolia Mill. species synonym

Alnaster cernuus Schweinf. ex H.J.P.Winkl., 1904 species doubtful

Alnus macrocarpa Req. species homotypic synonym

Alnus oblongata Kotschy species homotypic synonym

Alnus oblongifrons Borbás species homotypic synonym

Alnaster glutipes Jarm. species homotypic synonym

Alnites kefersteinii (Göppert, 1837) species accepted

Alnus praecordata Cockerell, 1908 species accepted

Alnus corylifolia Lesquereux, 1882 species doubtful

Alnus carpinoides Lesquereux, 1883 species accepted

Alnus alaskana Newberry, 1882 species accepted

Alnus alnobetula (Ehrh.) K.Koch species accepted

Alnus rhombifolia var. bernardiana Munz & I.M.Johnston variety synonym

Alnus serrulata Newberry, 1898 species doubtful

Alnus incana (L.) Moench species accepted

Alnus serrata hort. species homotypic synonym

Alnus incana subsp. tchangbokii Chin S.Chang & H.Kim subspecies synonym

Alnus alnobetula subsp. mandschurica (Callier) Chery subspecies synonym

Alnus ×silesiaca var. vulgaris Callier variety synonym

Alnus ×hybrida A.Braun species homotypic synonym

Alnus ×fiekii var. silesiaca (Fiek) Callier variety synonym

Alnus fruticosa f. pubescens (Nakai) T.B.Lee form synonym

Alnus longifolia Bové ex Decne., 1835 species accepted

Alnus alpina Borkh., 1800 species synonym

Alnus hirsuta var. tinctoria (Sarg.) Kudo variety synonym

Alnus henedae Sugim. species doubtful

Alnus ×fiekii Callier species synonym

Alnus glandulosa Sarg. species doubtful

Alnus washinhtonia Wetzel species doubtful

Alnus fernandi-coburgii C.K.Schneid. species doubtful

Alnus operia MacGinitie, 1941 species accepted