Noun lophophora williamsii has 1 sense
  1. mescal, mezcal, peyote, Lophophora williamsii - a small spineless globe-shaped cactus; source of mescal buttons
    --1 is a kind of cactus
    --1 is a member of Lophophora, genus Lophophora
    --1 has parts: mescal button, sacred mushroom, magic mushroom
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