Are Fremontodendron and Mitella both native to the southwestern United States and northwest Mexico?
Fremontodendron: Fremontodendron, with the common names fremontia, flannelbush, and flannel bush, is a genus of three known species of shrubs native to the Southwestern United States and northwest Mexico. Mitella:  "Mitella" species are native to temperate and arctic North America and Asia.
no