|University of California, Berkeley|
|Jepson eFlora: Taxon page
Key to families | Table of families and genera
Index to accepted names and synonyms:
| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
|Family: Cactaceae||View Description||Dichotomous Key|
|Genus:||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Habit: Erect or ascending, branches generally 0. Stem: 5--20 cm, 2--12 cm diam, ovoid to cylindric, not segmented, firm; ribs 8--21, prominent; tubercles distinct along ribs. Spines: 10--24 per areole, 0.3--2.1 mm diam, needle-like or awl-shaped, straight to curved or hooked; central spines 1--11 per areole. Flower: +- terminal, from upper edge of spine cluster, 25--75 mm diam; perianth +- green-yellow to magenta; ovary glabrous, spineless, scales sparse, rounded, ciliate at least near tip. Fruit: dehiscent by 2--4 short longitudinal slits, cylindric to +- spheric, spines 0. Seed: 2--3.7 mm, reniform, tubercled, glossy or shiny, black.
Species In Genus: +- 25 species: southwestern United States, Mexico. Etymology: (Greek: hard or cruel cactus)
eFlora Treatment Author: J. Mark Porter & Edward F. Anderson
Jepson Online Interchange
Key to SclerocactusPrevious taxon: Opuntia vaseyi
Next taxon: Sclerocactus johnsonii
Citation for this treatment: J. Mark Porter & Edward F. Anderson 2017. Sclerocactus, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=9221, accessed on February 20, 2017.
Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on February 20, 2017.