found: Work cat.: Hochstätter, F. The genera Pediocactus, Navajoa, Toumeya (Cactaceae), 2007:p. 42 (Navajoa peeblesiana Croizat ssp. peeblesiana; synonyms Toumeya peeblesiana (Croizat) Marshall, Pediocactus peeblesianus (Croizat) Benson) p. 44 (Navajoa peeblesiana Croizat ssp. menzelii (Hochstätter) Hochstätter stat. nov.; synonym Pediocactus peeblesiana fa. menzlii (Hochstätter) Hájek) p. 45 (Navajoa peeblesiana Croizat ssp. fickeiseniorum (Backberg) Hochstätter; synonyms Pediocactus peeblesianus var. fickeiseniorum Benson, Toumeya fickeiseniorum (Backeberg) Earle) p. 48 (Toumeya papyracantha (Engelm.) Britton & Rose; synonyms, Pediocactus papyracanthus Engelmann, Sclerocactus papyracanthus (Engelm.) Taylor)
found: Plants database, June 4, 2008(Pediocactus Britton & Rose, pincushion cactus; common name, plains cactus) classification (contains 7 genera and 10 taxa overall) Pediocactus peeblesianus (Croizat) L.D. Benson (synonyms, Pediocactus peeblesianus (Croizat) L.D. Benson var. fickeiseniae L.D. Benson, Pediocactus peeblesianus (Croizat) L.D. Benson var. peeblesianus L.D. Benson) Sclerocactus papyracanthus (Engelm.) N.P. Taylor (synonyms, Pediocactus papyracanthus (Engelm.) L.D. Benson, Toumeya papyracantha (Engelm.) Britton & Rose)
found: Flora of North America Home Page, June 4, 2008:FNA v. 4 (Pediocactus Britton & Rose; plains cactus, foot cactus, hedgehog cactus; [synonym] Navajoa Croizat, Pilocanthus B. W. Benson & Backeb., Utahia Britton & Rose)
found: USDA Germplasm Resources Information Network, June 4, 2008:Pediocactus Britton & Rose (synonyms, Navajoa Croizat, Pilocanthus B. W. Benson & Backeb., Utahia Britton & Rose)
found: NCU-3e. Names in current use for extant plant genera database, June 4, 2008(Citation: Pediocactus Britton & Rose; Date: 7 Jun 1913)
found: ITIS, July 2, 2008(Pediocactus--accepted--Hedgehog cactus)
found: Wikipedia, July 2, 2008(Pediocactus is a genus of cacti; the genus comprises between 6 and 11 species, depending upon the authority; species of this genus are referred to as hedgehog cacti; the genus has 2 synonyms: Navajoa (Croizat), Pilocanthus (B.W.Benson & Backeb.))
