Hesperalbizia occidentalis (Brandegee) Barneby & J. W. Grimes

on roadcut rubble on steep granite hillside above river canyon. Tree exhibits conspicuous smooth white new wood. Older bark ages grayish white to darker gray exfoliating plates on trunk .

on roadcut rubble on steep granite hillside above river canyon. Tree exhibits conspicuous smooth white new wood. Older bark ages grayish white to darker gray exfoliating plates on trunk .

on roadcut rubble on steep granite hillside above river canyon. Tree exhibits conspicuous smooth white new wood. Older bark ages grayish white to darker gray exfoliating plates on trunk .

on roadcut rubble on steep granite hillside above river canyon. Tree exhibits conspicuous smooth white new wood. Older bark ages grayish white to darker gray exfoliating plates on trunk .

on roadcut rubble on steep granite hillside above river canyon. Tree exhibits conspicuous smooth white new wood. Older bark ages grayish white to darker gray exfoliating plates on trunk .

on roadcut rubble on steep granite hillside above river canyon. Tree exhibits conspicuous smooth white new wood. Older bark ages grayish white to darker gray exfoliating plates on trunk .

on roadcut rubble on steep granite hillside above river canyon. Tree exhibits conspicuous smooth white new wood. Older bark ages grayish white to darker gray exfoliating plates on trunk .

white to pale gray barked tree in narrow arroyo riparian corridor below thorn scrub slopes, in sandy granitic soil

white to pale gray barked tree in narrow arroyo riparian corridor below thorn scrub slopes, in sandy granitic soil