Pt. 9, 3550 ft, Babad Do’ag Vista. Diverse Sonoran Desert vegetation on stony low foothills.
An explanation of this elevational transect can be found with this observation:
Fouquieria is a genus of 11 species of desert plants, the sole genus in the family Fouquieriaceae. The genus includes the ocotillo (F. splendens) and the boojum tree or cirio (F. columnaris). They have semisucculent stems with thinner spikes projecting from them, with leaves on the bases spikes. They are unrelated to cacti and do not look much like them; their stems are proportionately thinner than cactus stems and their leaves are larger.