Alnus undulata:
Alnus undulata:
Alnus undulata hort. ex H. J. P. Winkl., Betulaceae: See Alnus serrulata (Aiton) Willd.
Alnus undulata Willd., Betulaceae: See Alnus viridis (Chaix) DC. subsp. crispa (Aiton) Turrill.
A herbal distance course
Henriette's herbal is one of the oldest and largest herbal medicine sites on the net. It's been online since 1995, and is run by Henriette Kress, a herbalist in Helsinki, Finland.