Assertion: mescaline's alkaloid | /r/AtLocation | fast-growing san pedro cactus
Facets:
Source sentences:
text: The alkaloid is found in the fast-growing San Pedro cactus (Echinopsis pachanoi) that towers above the mountainous desert scrub of the Andes, and the slow-growing, ground-hugging peyote cactus (Lophophora williamsii) native to Mexico and the southwestern United States.