Publication: Cactaceae Syst. Init. 14: 16. 2002 [Oct 2002] Origin and Habitat Bahia San Quintín, Baja California Norte (Mexico, Northern America) Notes Ferguson collected seed, which was intitially cultivated by S. Brack (Mesa Garden Nursery, USA), then cult. (ex seed from controlled pollination of above) by D. Bowdery
