|University of California, Berkeley|
|Jepson eFlora: Taxon page
Key to families | Table of families and genera
Index to accepted names and synonyms:
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|Family: Cactaceae||View Description||Dichotomous Key|
|Genus:||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Habit: Erect or leaning, branches 0, occasionally branched from tip-injury. Stem: (0)10--200(300) cm, 10--35 cm diam, depressed-spheric to short-columnar, hard, glabrous, not segmented; ribs 13--31, prominent; tubercles not conspicuous on ribs. Spines: 10--32 per areole, 2--4.5 mm wide, generally awl-shaped, generally flat, ringed with conspicuous ridges, straight to curved or +- hooked, some bristle-like; central spines generally 4 per areole. Flower: +- terminal, near distal edge of spine cluster, 3--6 cm diam; perianth yellow to red [or purple, or white with +- purple midstripes]; ovary glabrous, spines 0, scales numerous, generally rounded, margins minutely fringed or toothed. Fruit: spheric, ovoid, or cylindric, glabrous, spineless, dehiscent by basal pore. Seed: 1.5--3 mm, spheric to subreniform, pitted, black.
Species In Genus: 25 species: southwestern United States, Mexico. Etymology: (Latin: fierce cactus)
eFlora Treatment Author: Bruce D. Parfitt
Jepson Online Interchange
Key to FerocactusPrevious taxon: Echinocereus mojavensis
Next taxon: Ferocactus cylindraceus
Citation for this treatment: Bruce D. Parfitt 2017. Ferocactus, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=10633, accessed on January 16, 2017.
Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on January 16, 2017.