Peyotes, mostly cacti of the genera Lophophora and Ancistrocactus, grow in more remote sites.    From Wordnik.com.  [Wildflower hunting in Durango] Reference

At least 16 endemic genera of woody plants and cacti have been described from this province (e.g. Dasylirion, Eutetras, Sartwellia, Ariocarpus, and Lophophora).    From Wordnik.com.  [Central Mexican matorral] Reference

Echinocactus Williamsii (Lophophora williamsii).    From Wordnik.com.  [Cactus Culture for Amateurs Being Descriptions of the Various Cactuses Grown in This Country, With Full and Practical Instructions for Their Successful Cultivation] Reference