World Checklist of Selected Plant Families (WCSP)

Alnus crispa var. elongata Raup, J. Arnold Arbor. 17: 243 (1936).

This name is a synonym.

Accepted Name:	Alnus alnobetula subsp. crispa (Aiton) Raus, Willdenowia 41: 129 (2011).
Family:	Betulaceae
Original Compiler:	R.Govaerts