Pediocactus simpsonii (Engelm.) Br. & Rose var. minor (Engelm.) Cockerell, det. Kenneth D. Heil, 1990. Original ID as Pediocactus simpsonii. Flowers pink and yellow.
For additional information about this specimen, please contact: J Ryan Allen, Biodiversity Informatics Manager (Database inquiries) (james.r.allen@colorado.edu)