Parkinsonia microphylla

  Native, slow-moderate growing tree that gets up to 30ft. Can be single or multi-trunked, with thorn-tipped branches and small leaves. Great nesting habitat for native birds. Tolerant of heat, cold and poor soils. In extreme drought or cold, tree may drop leaves. Yellow flowers bloom for a few weeks in late spring, usually following the flowering of the Blue Palo Verdes.