Assertion: mescaline's plant | /r/MadeOf | the chemical
Facets:
Source sentences:
text: At Chavin de Huantar, a temple complex in the Peruvian Andes thought to date to as early as 1200 BC , stone carvings show grimacing figures—part human, part jaguar—clutching the oblong San Pedro cactus, one of a few plants known to contain the chemical.