Photo: Lophophora williamsii 1.

Plants. Marburg bot.g., Germany. Greenhouse. 2006-10-02.
Lophophora williamsii (Lem. ex Salm-Dyck) Engl.: peyote, mescal buttons, muscal buttons, pellote. Deu.: Peyote. Sven.: giftkaktus, meskalinkaktus. Bot. syn.: Anhalonium jourdanianum Lewin, Anhalonium lewinii Henn. ex Lewin, Anhalonium williamsii (Salm-Dyck) Lem., Echinocactus lewinii (Henn. ex Lewin) K. Schum., Echinocactus williamsii Lem. ex Salm-Dyck, Lophophora lewinii (Henn. ex Lewin) C. H. Thomps.
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Photo: Lophophora williamsii 1.