Opuntia fragilis (Nutt.) Haw. [ Opuntia brachyarthra Engelm. & J.M. Bigelow]
no HD illustration available (m1)
Opuntia fragilis (Nutt.) Haw. [ Cactus fragilis Nutt.] [Cactaceae]
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 12 (1853-1856) [P. Roetter]