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| Botanical names: Lophophora williamsii, Echinocactus lewinii, Echinocactus williamsii, Mammillaria lewinii, Lophophora lewinii, Lophophora jourdaniana, Peyotl zacatensis var. fricii, Lophophora fricii, Mammillaria williamsii | Cactaceae | |
| Common names English: peyote, peyotl, challote, mescal, mescal button Spanish: peyote French: peyotl German: Peyote | ||
| Active constituents: mescaline, hordenine | ||
