Are Fremontodendron and Mitella both native to the southwestern United States and northwest Mexico?
Mitella Mitella is a genus of flowering plants known as miterworts or bishop's caps. "Mitella" species are native to temperate and arctic North America and Asia.
Grusonia pulchella Grusonia pulchella (Engelm.) H.Rob. (sagebrush cholla) is a tuberous species of opuntioid cactus from the Mojave Desert of central Nevada, eastern California, northwestern Arizona and western Utah in the United States. "Grusonia pulchella" has at various times been included in "Opuntia" or placed in a separate genus "Micropuntia".