| Arten: |
| Alnus acuminata Kunth |
| Alnus acuminata subsp. acuminata. |
| Alnus acuminata subsp. arguta (Schltdl.) Furlow |
| Alnus acuminata subsp. glabrata (Fernald) Furlow |
| Alnus cordata (Loisel.) Loisel. |
| Alnus cremastogyne Burkill |
| Alnus × elliptica Req. |
| Alnus × fallacina Callier |
| Alnus fauriei H.Lév. & Vaniot |
| Alnus ferdinandi-coburgii C.K.Schneid. |
| Alnus firma Siebold & Zucc. |
| Alnus formosana (Burkill) Makino |
| Alnus glutinosa (L.) Gaertn. |
 |
| Alnus glutinosa subsp. antitaurica Yalt |
| Alnus glutinosa subsp. barbata (C.A.Mey.) Yalt. |
| Alnus glutinosa subsp. betuloides Ansin |
| Alnus glutinosa subsp. glutinosa. |
| Alnus glutipes (Jarm. ex Czerpek) Vorosch. |
| Alnus hakkodensis Hayashi |
| Alnus × hanedae Suyinata |
| Alnus henryi C.K.Schneid. |
| Alnus hirsuta (Spach) Rupr. |
| Alnus × hosoii Mizush. J. |
| Alnus incana (L.) Moench |
| Alnus incana subsp. incana. |
| Alnus incana subsp. kolaensis (Orlova) Á.Löve & D.Löve |
| Alnus incana subsp. rugosa (Du Roi) R.T.Clausen |
| Alnus incana subsp. tenuifolia (Nutt.) Breitung |
| Alnus japonica (Thunb.) Steud. |
| Alnus jorullensis Kunth |
| Alnus jorullensis subsp. jorullensis. |
| Alnus jorullensis subsp. lutea Furlow |
| Alnus lanata Duthie ex Bean |
| Alnus mairei H.Lév. |
| Alnus mandshurica (Callier) Hand.-Mazz. |
| Alnus maritima (Marshall) Muhl. ex Nutt. |
| Alnus matsumurae Callier |
| Alnus maximowiczii Callier |
| Alnus × mayrii Callier |
| Alnus nepalensis D.Don |
| Alnus nitida (Spach) Endl. |
| Alnus oblongifolia Torr. |
| Alnus orientalis Decne. |
| Alnus paniculata Nakai |
| Alnus × peculiaris Hiyama |
| Alnus pendula Matsum. |
| Alnus × pubescens Tausch |
| Alnus rhombifolia Nutt. |
| Alnus rubra Bong |
| Alnus serrulata (Aiton) Willd. |
| Alnus serrulatoides Callier |
| Alnus sieboldiana Matsum. |
| Alnus subcordata C.A.Mey. |
| Alnus × suginoi Sugim. |
| Alnus trabeculosa Hand.-Mazz. |
| Alnus vermicularis Nakai |
| Alnus viridis (Chaix) DC. |
| Alnus viridis subsp. crispa (Aiton) Turrill |
| Alnus viridis subsp. fruticosa (Rupr.) Nyman |
| Alnus viridis subsp. sinuata (Regel) Á.Löve & D.Löve |
| Alnus viridis subsp. suaveolens (Req.) P.W.Ball |
| Alnus viridis subsp. viridis. |