Opuntia mesacantha

Rafinesque, Bulletin Botanique 1: 216, 1830 (Also Opuntia mesacantha Raf ssp mesacantha Majure) See O. cespitosa    See O. humifusa    See O. lata Herbarium; Herbarium; Herbarium; Hebarium   What is Opuntia mesacantha? Opuntia mesacantha is a southeastern prickly pear found in Georgia, Alabama, and Florida and adjacent areas in the southern Piedmant and Gulf Coast Barrier … Read moreOpuntia mesacantha

Opuntia xanthoglochia

Griffiths, Annual Report of the Missouri Botanical Garden 21: 166, 1910 Holotype; Painting (Mary Emily Eaton); Painting (Mary Emily Eaton) What is Opuntia xanthoglochia? Opuntia xanthoglochia is a prickly pear cactus cactus found in central TX, east of Austin although it may range into other areas. Details O. xanthoglochia resembles O. macrorhiza, and the cactus … Read moreOpuntia xanthoglochia

Opuntia cespitosa

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. cespitosaRead moreOpuntia cespitosa

Opuntia zuniensis

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

Opuntia woodsii

Backeberg, Descriptiones Cactacearum Novarum 10, 1956 Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Herbarium Details Opuntia woodsii has been proposed to be synonymous with numerous other prickly pears. It has even been proposed to be a pink- or red-flowered hybrid of various parents. But O. woodsii is a distinct cactus; it is a self-reproducing species and is not a hybrid population. Cladodes … Read moreOpuntia woodsii

Opuntia tortispina

Engelmann & J. M. Bigelow, Proceedings of the American Academy of Arts and Sciences 3: 293, 1856 [1857] Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Herbarium (submitted as O. aff polyacantha); Herbarium (submitted as O. polyacantha); Herbarium (submitted as O. polyacantha); Herbarium (submitted as O. polyacantha); Drawing (Britton and Rose, v1 1919, plate XV) Details Opuntia tortispina is a prickly pear … Read moreOpuntia tortispina

Opuntia sp nova aff macrorhiza

Introduction  This undescribed prickly pear cactus occurs in northern New Mexico. It has similarities with Opuntia macrorhiza. More studies are needed.

Opuntia trichophora

(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

Opuntia pusilla (O. drummondii)

(Haworth) Haworth, Synopsis Plantarum Succulentarum 195, 1812 Neotype; Neotype; Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Herbarium Details Opuntia pusilla is a prickly pear cactus of the coastal plains from North Carolina, across northern Florida, to Mississippi. While thought of as a beach cactus, this small prickly pear cactus … Read moreOpuntia pusilla (O. drummondii)

Opuntia polyacantha

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