California-

Opuntias primarily from California. Many of these are not cold hardy unless they are from high altitudes.

Opuntia covillei

Britton and Rose, Smithsonian Miscellaneous Collections 50: 532, 1908 Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Photograph (Britton and Rose, 1919); Painting; Drawing (JJ Thornber; The Fantastic Clan of the Cactus Family) What is O. covillei? Opuntia covillei is a medium-sized, California prickly pear cactus that grows in angular shapes to 1 m across. …

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Opuntia oricola

Philbrick, Cactus and Succulent Journal (U.S.) 36(6): 163, 1964 Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Herbarium What is Opuntia oricola? Opuntia oricola is a medium-sized, easy-to-recognize prickly pear cactus found in coastal CA.  Details O. oriciola pads are 15 to 26 cm long and 12 to 19 cm wide, …

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Opuntia occidentalis

Opuntia occidentalis is found along the coast of southern CA…

Opuntia littoralis

(Engelmann) Britton & Rose, Smithsonian Miscellaneous Collections 50: 529, 1908 Lectotype; Syntype; Lectotype; Lectotype; Lectotype; Lectotype What is Opuntia littoralis? Opuntia littoralis is a California prickly pear cactus that was originally described as a variety of O. engelmannii, but the two species are not closely related. Details O. littoralis plants are low and spreading, but …

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Opuntia semispinosa

Griffiths, Bulletin of the Torrey Botanical Club 43(2): 89, 1916 Holotype What is Opuntia semispinosa? Opuntia semispinosa is a coastal prickly pear cactus from southern California and Mexico that has been variously lumped into O. occidentalisO. littoralis, or even other opuntias of coastal California. We accept it as a stand-alone species. Details Plants my reach 1 or 1.4 m …

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Opuntia vaseyi

  (J.M. Coulter) Britton & Rose, Smithsonian Miscellaneous Collections 50: 532, 1908 Herbarium; Herbarium; Herbarium; Herbarium (holotype, deposited as O. magenta); Lectotype (O. mesacantha vaseyi); Herbarium; Herbarium; Herbarium; Holotype (O. intricata); Isotype (O. intricata);  Details Opuntia vaseyi is a low, spreading, bushy prickly pear cactus found “along and near the coast of southern California.” It …

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Opuntia rugosa

Griffiths, Proceedings of the Biological Society of Washington 27(6): 27, 1914 Holotype; Isotype; Herbarium; Painting What is Opuntia rugosa? Opuntia rugosa is an uncommonly found prickly pear cactus that was reported from Pomona, CA in the early 1900s and apparently never again.  Details O. rugosa is a low, semi-ascending, and spreading cactus to about 25 to 30 …

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