Small tree or large shrub that can reach a mature size of 24'
tall by 18' wide. Growth habit is irregular, with long spiny
branches. The small green leaves that line the branches are
drought-deciduous, but will remain on the plant with
supplemental irrigation. Bright red flower clusters appear
primarily in spring, but can bloom intermittently throughout the
year. Rocky slopes
in Sonora 500-2500'. Short thick trunk.