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.
Thamnosma montana Thamnosma montana, the turpentine broom, or Mojave desert-rue, is a shrub in the citrus family Rutaceae. It is native to the deserts of the southwestern United States and northern Mexico. Except immediately after heavy rains, its straight stems usually lack leaves, giving it a broom-like appearance. The Latin specific epithet "montana" refers to mountains or coming from mountains.