A native of Arizona and California, and extending southwards into Sonora and Baja California, this species of the genus Bursera develops a thick trunk with light gray-brown bark and finely pinnate leaves. This form has longer leaflets and comes from the Waterman Mountains of Arizona. We grow this species outside in Tucson, where it withstands 25F; heavier frost actually sculpts the plants into a nicer, more compact form. Our plants are seedlings in 2-inch pots.