San Dimas Pricklypear

Griffiths, Proceedings of the Biological Society of Washington 27(6): 27, 1914  Holotype; Isotype; Painting Original Description What is Opuntia rugosa? Opuntia rugosa is an uncommonly found pricklypear cactus that was reported from the Pomona area of California in the early 1900s and apparently never studied again.  Details The biggest feature, that for which it is named, is that […]