Botanical name: Astrophytum asterias
Synonym: Echinocactus asterias
Common name: Peyotillo, Sand Dollar Cactus, Sea Urchin Cactus, Star Cactus, Star Peyotl
Native to: southern Texas to Northern Mexico
Plants are native to a large area from Southern Texas (USA) to Northern Mexico. Reported to contain unspecified alkaloids.