Pediocactus simpsonii f. acklinii Hochstätter in Succulenta (Netherlands) 76: 264. 1997 Pediocactus simpsonii f. acklinii Hochstätter in Succulenta (Netherlands) 76: 264. 1997Taxon for this namePediocactus simpsonii f. acklinii Hochstätter