…glochids are forever
These are Opuntias that are cold-hardy to USDA climate zone 7a or colder. Some (e.g., O. polyacantha) can be very cold hardy.
Introduction Opuntia sp nova aff camanchica is an undescribed prickly pear cactus that occurs in the area of greater Albuquerque, New Mexico, including adjacent portions of Cibola National Forest. It may be found from 1650 m to 2000 m, but its altitudinal range may be greater. Similarly it may range much beyond the Albuquerque area. The … Read moreOpuntia sp nova aff camanchica
(Anthony) Ferguson, Cactus and Succulent Journal (U.S.) 58(3): 124, 1986 Herbarium; Herbarium; Herbarium What is Opuntia chisosensis? Opuntia chisosensis is a prickly pear cactus that grows in the Big Bend region of Texas and adjacent Mexico where it occurs at higher elevations in wooded areas. Details O. chisosensis is a medium-sized (to 1 m tall) prickly … Read moreOpuntia chisosensis
Rafinesque, Bulletin Botanique 2: 216, 1830 Herbarium (submitted as O. humifusa); Herbarium (submitted as O. humifusa); Herbarium; Herbarium; Herbarium (submitted as O. humifusa); Herbarium; Herbarium; Herbarium; Herbarium See O. humifusa See O. lata See O. mesacantha What is Opuntia cespitosa? Opuntia cespitosa is a prickly pear included in the O. humifusa group of cacti (O. humifusa s.l.). O. cespitosa … Read moreOpuntia cespitosa
Griffiths, Bulletin of the Torrey Botanical Club 43: 86, 1916 Holotype; Isotype; Herbarium; Herbarium; Herbarium; Herbarium Details Opuntia zuniensis is a prickly pear cactus that has been lumped together with O. phaeacantha, O. tortispina, or O. camanchica. Herein, it is considered to be a stand-alone species of prickly pear. The species has distinctive spination and occurs in Arizona, New Mexico, … Read moreOpuntia zuniensis
Griffiths, Proceedings of the Biological Society of Washington 27: 24, 1914 Holotype; Isotype; Herbarium; Herbarium; Herbarium; Herbarium (affinity O. valida); Herbarium (affinity O. valida) Details Opuntia valida is a handsome prickly pear cactus. The spination, areoles, and habit of this cactus are distinctive. “An erect to ascending, widely radiating branched species, with main limbs ascending or … Read moreOpuntia valida
Introduction This undescribed prickly pear cactus occurs in northern New Mexico. It has similarities with Opuntia macrorhiza. More studies are needed.
(Engelmann & J. M. Bigelow) Britton & Rose, Smithsonian Miscellaneous Collections 50: 535, 1908 Lectotype (O. missouriensis trichophora); Lectotype (O. polyacantha trichophora); Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Drawing (The Botany of the Expedition, 1856, plate XV No. 1-4 [O. missouriensis trichophora]) Opuntia trichophora is related to O. arenaria O. trichophora is related to O. diploursina O. trichophora is related to O. polyacantha Details … Read moreOpuntia trichophora
Griffiths, Bulletin of the Torrey Botanical Club 43(2): 90, 1916 Isotype; Isotype; Herbarium; Herbarium; Herbarium; Herbarium (O. griffithsiana); Herbarium (O. griffithsiana); Herbarium (O. reflexa) Details Opuntia pyrocarpa is a commonly encountered prickly pear cactus in central and north-central Texas where it grows in deep limestone-derived soils. The cactus may occur well into Mexico. Though we have not observed … Read moreOpuntia pyrocarpa
Haworth, Supplementum Plantarum Succulentarum 82, 1819 What is Opuntia polyacantha? Opuntia polyacantha is a variable prickly pear cactus ranging from Mexico near CA, to TX, to the Rocky Mountain states and the Great Plains, and north into Alberta and Saskatchewan. This prickly pear cactus has been observed in dry areas in MN and MO. This … Read moreOpuntia polyacantha
Parfitt, Rhodora 99(899): 223, 1997 Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Herbarium What is Opuntia pinkavae? Opuntia pinkavae is a small prickly pear cactus. Long before publication of the name “pinkavae“. This Opuntia was distributed under the name O. kaibabensis; however, that name was never officially published. It is a member of the dry-fruited … Read moreOpuntia pinkavae