Opuntia engelmannii particular, classified the fruits by color, time of ripening, and how well they kept in storage. "Opuntia engelmannii" is cultivated as an ornamental plant, for use in drought tolerant gardens, container plantings, and natural landscaping projects. Master Gardeners of the University of Arizona Pima County Cooperative Extension — "Opuntia engelmannii" Opuntia engelmannii Opuntia engelmannii is a prickly pear common across the south-central and Southwestern United States and northern Mexico. It goes by a variety of common names, including cow's tongue cactus, cow tongue prickly pear, desert prickly pear, discus prickly pear, Engelmann's prickly pear, and Texas prickly pear in the
Opuntia bentonii Opuntia bentonii Opuntia bentonii was proposed by some botanists to be a synonym of "Opuntia stricta". However, "O. bentonii", which grows in Texas, is separate and distinct from "O. stricta." "O. bentonii" was clearly described by Griffiths in 1911. Along with "O. stricta","O. bentonii" was one of the pest pears of Australia in the early Twentieth Century. Like so many "Opuntia" species, "O. bentonii" has been mistaken for a coastal form of "O. lindheimeri" in Texas, but there are sustained differences. For instance, "O. bentonii" plants are often less than 60 cm in height and the fruit is more globular