Echinomastus

Classification System: APG IV

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

Familia: Cactaceae
Subfamilia: Cactoideae
Tribus: Cacteae
Genus: Echinomastus
Species: E. erectocentrus – E. intertextus – E. johnsonii – E. mariposensis – E. warnockii
Name

Echinomastus Britton & Rose, Cactaceae 3: 147, f. 154–158 (1922).

Type species: Echinomastus erectocentrus (J.M.Coult.) Britton & Rose

Synonyms

Homotypic
Echinocactus [infragen unranked] Unguispini Vaupel in Engl. (ed.), Nat. Pflanzenfam. 21: 622, 624 (1925).
Echinocactus subg. Echinomastus (Britton & Rose) A.Berger, Kakteen 8: 250 (1929).
Thelocactus subg. Echinomastus (Britton & Rose) Soulaire, Cactus (Paris) 10(46–47): 250 (1955).

Heterotypic
Echinocactus [infragen unranked] Intertexti Engelm., Syn. Cact. U. S. 21 (1856).
Type species: Echinocactus intertextus Engelm.
Gymnocactus V.John & Říha, Kaktusy (Brno) 19(1): 22 (1981), nom. illeg. non Backeb. (1938).
Type species: Gymnocactus beguinii (F.A.C.Weber ex K.Schum.)

Note

Not accepted by:

Hunt, D., Lowry, M. & Taylor, N. (2012). NCL updates etc Cactaceae Systematics Initiatives: Bulletin of the International Cactaceae Systematics Group 27: 16-23. [Cited as Sclerocactus.]
Govaerts, R.H.A. 2001. World Checklist of Seed Plants Database in ACCESS E-F: 1-50919. [unavailable to the public] Reference page.

References

Britton, N.L. & Rose, J.N. (1922) The Cactaceae 3: 147, f. 154–158.
eFloras 2008. Echinomastus in Flora of North America . Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.

Echinomastus (meaning "spiny breast") is a genus of cacti. They are native to the southwestern United States and Mexico.

There are up to 9 species, including:

Echinomastus erectocentrus
Echinomastus intertextus
Echinomastus johnsonii
Echinomastus mariposensis
Echinomastus unguispinus
Echinomastus warnockii

References

Flora of North America

http://southwestdesertflora.com/
https://www.americansouthwest.net/plants/index.html