Chamaesyce florida
ANNUAL.  Plants erect, with a single stem about 20 cm tall.  White to pink flowers, a little over .5 cm in diameter, bloom at the ends of thin radiating branches.  An open, lacy, delicate looking plant.  Common in desertscrub in late summer after rains; blooms from July until frost.
FAMILY:  Euphorbiaceae (Spurge Family)