Wikipedia / Stenocactus Stenocactus is a genus of cacti in the Cactaceae family.SynonymyThe following genera have been brought into synonymy with Stenocactus:Echinofossulocactus Britton & RoseEfossus Orcutt (orth. var.)SpeciesTwo further species, S.hastatus and S.rectispinus, are of uncertain status.ReferencesExternal links