Family Cactaceae Rank Species | Genus Opuntia Higher classification Prickly pear | |
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Similar Prickly pear, Cactus, Opuntia polyacantha, Opuntia phaeacantha, Opuntia macrocentra | ||
Pony prickly pear update opuntia fragilis
Opuntia fragilis, known by the common names brittle pricklypear and little prickly pear, is a prickly pear cactus native to much of western North America as well as some eastern states such as Illinois, Iowa, Wisconsin and Michigan. It occurs in several Canadian provinces. It is known from farther north than any other cactus, occurring at as close as 8°south of the Arctic Circle, (58°N latitude) in Alberta. There is an isolated and possibly genetically unique population in Eastern Ontario known as the "Kaladar cactus".
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Opuntia fragilis common name brittle prickly pear in bloom youtube
Description
Brittle pricklypear is a small decumbent cactus that grows to a maximum height of 10 centimeters (4 in). Both the common and scientific names refer to the easily detached stem segments. This is known to be a means of plant dispersal.
Opuntia fragilis is a small, prostrate plant, rarely more than 4 inches high: joints tumid, fragile, easily detached, oval, elliptical, or subglobose, 1-2 in. long and nearly as thick as broad, bright green: areoles ¼-½ in. apart, with whitish wool and a few white to yellow bristles, which are much longer and more abundant on older joints; spines 1-4, occasionally a few small additional ones, weak, dark brown, the upper one usually longer and stronger than the others, rarely an inch in length: flowers greenish yellow, 1-1¼ inches wide: fruit ovate to subglobose. with few spines or bristles, mostly sterile, an inch or less long; seeds few and large. Rocky Mountain region from Canada to New Mexico.
Subspecies and varieties
