World Checklist of Selected Plant Families: Royal Botanic Gardens, Kew

Alnus crispa (Aiton) Pursh, Fl. Amer. Sept. 2: 181 (1814).

This name is a synonym.

Homotypic Names:
Accepted Name:	Alnus alnobetula subsp. crispa (Aiton) Raus, Willdenowia 41: 129 (2011).
Family:	Betulaceae
* Betula crispa Aiton, Hortus Kew. 3: 339 (1789). Betula alnus var. crispa (Aiton) Michx., Fl. Bor.-Amer. 2: 181 (1803). Alnus alnobetula var. crispa (Aiton) H.J.P.Winkl. in H.G.A.Engler (ed.), Pflanzenr., IV, 61: 107 (1904). Alnus viridis f. typica Callier, Repert. Spec. Nov. Regni Veg. 10: 226 (1911), not validly publ. Alnus viridis var. crispa (Aiton) House, Bull. New York State Mus. Nat. Hist. 254: 271 (1924). Alnaster crispus (Aiton) Czerep., Bot. Mater. Gerb. Bot. Inst. Komarova Akad. Nauk S.S.S.R. 17: 96 (1955). Alnus viridis subsp. crispa (Aiton) Turrill, Bot. Mag. 173: 382 (1962). Duschekia crispa (Aiton) Pouzar, Preslia 36: 339 (1964). Alnus alnobetula subsp. crispa (Aiton) Raus, Willdenowia 41: 129 (2011). * Basionym/Replaced Synonym
Original Compiler:	R.Govaerts