Retama (Parkinsonia aculeata) is another arid/desert tree that produces edible beans. Like mesquite, the beans inside the seedpods are extremely hard and generally ground with rocks then boiled into a mush. Young, tender pods are also edible but I personally haven't been able to harvest any to try. A cool thing about this that during times of extreme heat/drought Retama will drop its leaves but continue to photosynthesize using the chlorophyll in its beautiful (albeit thorny) green bark. #forage