Pediocactus simpsonii

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Ordo: Caryophyllales

Familia: Cactaceae
Subfamilia: Cactoideae
Tribus: Cacteae
Genus: Pediocactus
Species: Pediocactus simpsonii
Name

Pediocactus simpsonii (Engelm.) Britton & Rose, Ill. fl. n. U.S., ed. 2, 2: 570 (1913), as "simpsoni".
Note

The specific epithet honors James Hervey Simpson (1813-1883) an officer in the U.S. Army and a member of the United States Corps of Topographical Engineers.
Synonyms

Echinocactus simpsonii Engelm.
Echinocactus simpsonii f. minor (Engelm.) Schelle
Echinocactus simpsonii var. minor Engelm.
Echinocactus simpsonii var. robustior J.M.Coult.
Mammillaria purpusii K.Schum.
Mammillaria simpsonii (Engelm.) M.E.Jones
Mammillaria spaethiana Späth
Pediocactus hermannii W.T.Marshall
Pediocactus nigrispinus subsp. indranus (Hochstätter) Hochstätter
Pediocactus robustior (J.M.Coult.) Arp
Pediocactus simpsonii f. acklinii Hochstätter
Pediocactus simpsonii subsp. bensonii Hochstätter
Pediocactus simpsonii var. caespiticus Backeb.
Pediocactus simpsonii f. campestris Hochstätter
Pediocactus simpsonii f. dinosauriensis Hochstätter
Pediocactus simpsonii f. flaminggorgensis Hochstätter
Pediocactus simpsonii f. flinspachii Hochstätter
Pediocactus simpsonii var. hermannii (W.T.Marshall) W.T.Marshall
Pediocactus simpsonii subsp. idahoensis Hochstätter
Pediocactus simpsonii f. kuenzleri Hochstätter
Pediocactus simpsonii var. minor (Engelm.) Cockerell
Pediocactus simpsonii f. montanensis Hochstätter
Pediocactus simpsonii f. muehlii Hochstätter
Pediocactus simpsonii subsp. robustior (J.M.Coult.) Hochstätter

Distribution
Native distribution areas:

Continental: Northern America
Regional: Central USA
Arizona, Colorado, Idaho, Montana, Nevada, New Mexico, South Dakota, Utah, Wyoming

References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition
References
Primary references

Britton, N.L. & Rose, J.N. in
Britton, N.L. & Brown, A. 1913. An illustrated flora of the northern United States, Canada and the British possessions: from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. ed. 2. C. Scribner's sons, New York. Vol. 2: 570. Reference page.

Additional references

Korotkova, N., Aquino, D., Arias, S., Eggli, U., Franck, A. , Gómez-Hinostrosa, C., Guerrero, P.C., Hernández, H.M., Kohlbecker, A., Köhler, M., Luther, K., Majure, L.C., Müller, A., Metzing, D., Nyffeler, R., Sánchez, D., Schlumpberger, B. & Berendsohn, W.G. 2021. Cactaceae at Caryophyllales. org–a dynamic online species-level taxonomic backbone for the family. Willdenowia 51(2): 251–270. DOI: 10.3372/wi.51.51208 Open access Reference page.

Links

Korotkova, N. et al. 2021. Pediocactus simpsonii in Cactaceae at Caryophyllales.org. A global synthesis of species diversity in the angiosperm order Caryophyllales. Published online. Accessed: 2021 Nov 23. Reference page.
International Plant Names Index. 2017. Pediocactus simpsonii. Published online. Accessed: Sep 22 2017.
The Plant List 2013. Pediocactus simpsonii in The Plant List Version 1.1. Published online. Accessed: 2017 Sep 22.
Tropicos.org 2017. Pediocactus simpsonii. Missouri Botanical Garden. Published online. Accessed: 22 Sep 2017.
eFloras 2008. Pediocactus simpsonii in Flora of North America . Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
USDA, ARS, Germplasm Resources Information Network. Pediocactus simpsonii in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 09-Oct-10.

Vernacular names
English: mountain ball cactus, Simpson's Hedgehog Cactus, Snowball Pediocactus, Mountain cactus, Simpson’s footcactus, Simpson’s hedgehog cactus
svenska: klotpediokaktus