World Checklist of Selected Plant Families (WCSP)

Alnus rhombifolia Nutt., N. Amer. Sylv. 1: 33 (1842).

Homotypic Names:

• Alnus rhombifolia var. typica Callier, Repert. Spec. Nov. Regni Veg. 10: 229 (1911), not validly publ.

Heterotypic Synonyms:

• Alnus glutinosa lusus californica Regel, Nouv. Mém. Soc. Imp. Naturalistes Moscou 13(2): 166 (1861).
• Alnus californica (Regel) H.J.P.Winkl. in H.G.A.Engler (ed.), Pflanzenr., IV, 61: 115 (1904).
• Alnus rhombifolia var. ovalis H.J.P.Winkl. in H.G.A.Engler (ed.), Pflanzenr., IV, 61: 115 (1904).
• Alnus rhombifolia var. bernardina Munz & I.M.Johnst., Bull. Torrey Bot. Club 52: 222 (1925).