Alnus incana (L.) Moench [ Alnus rugosa (Du Roi) Sprengel]
no HD illustration available (m1)
Alnus incana (L.) Moench [ Betula alnus var. rugosa Du Roi] [Betulaceae]
A. Lounsberry, E. Rowan, A guide to the trees: t. 15 (1900) [E. Rowan]