Contains 1 accepted taxa overall.

Characteristics
Alnus Mill.
ALDER
Classification
FAGALES
Alnus
Citation
ALNUS Miller, Gard. Dict. Abr., ed. 4. 1754.
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TYPE: Alnus glutinosa (Linnaeus) Gaertner (Betula alnus Linnaeus, var. glutinosa Linnaeus) Lectotypified by Furlow, Rhodora 81: 74. 1979.
Species
Scientific Name Common Name Herbarium Specimens Status Photos
Alnus serrulata HAZEL ALDER Native FACW (NWPL) OBL (DEP)
[Family identification key]

No identification key is available for this family.

Genus Synonyms
Synonym Full Citation Basionym Type
Alnaster Alnaster Spach, Ann. Sci. Nat., Bot., ser. 2. 15: 183, 200. 1841. TYPE: Alnus viridis Spach, nom. illegit. (Betula viridis Chaix, nom. illegit.; Betula alnobetula Ehrhart)
Alnobetula Alnobetula (W. D. J. Koch) Schur, Verh. Mitth. Siebeguerg Vereins Naturwiss. Hermannstadt 4: 68. 1853. BASIONYM: Alnus Miller, sect. Alnobetula W. D. J. Koch, Syn. Fl. Germ. Helv., ed. 2. 762. 1844. TYPE: Alnobetula viridis Schur (Betula viridis Chaix, nom. illegit.; Betula alnobetula Ehrhart) = Alnaster Spach 1841.
Betula-alnus Betula-alnus Marshall, Arbust. Amer. 19. 1785. TYPE: Non designatus.
Clethropsis Clethropsis Spach, Ann. Sci. Nat., Bot., ser. 2. 15: 183, 201. 1841. TYPE: Non designatus.
Semidopsis Semidopsis Zumaglini, Fl. Pedem. 1: 249. 1849. TYPE: Semidopsis viridis Zumaglini, nom. illegit. (Betula viridis Chaix, nom. illegit.; Betula alnobetula Ehrhart) = Alnaster Spach 1841.