Echinocactus williamsii:
Echinocactus williamsii:
Echinocactus williamsii Lem. ex Salm-Dyck, Cactaceae: See Lophophora williamsii (Lem. ex Salm-Dyck) J. M. Coult.
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.