Tipos: "Rarissime in montanis prope Ancasti, Prov. Catamarca."
[Exsiccata: Not located. According to Kiesling (Cactáceas publicadas por el Dr. Carlos Spegazzini: 228. 1984) the type specimen was not found.- Photographs: LP: without data. Reproduced by Britton and Rose (Cact. 3: 165, fig. 178. 1922).]=> Katinas et al., Darwiniana 42: 181-182. 2004.