Chamaesyce hyssopifolia
An atypical Chamaesyce with stems up to 1 meter tall (usually shorter) and oval, toothed leaves with prominent veins.  Flowers are clustered at the ends of the branches. Flower appendages white to pink, unequal in size (two large, two small).  The relatively large leaves, sparse branches, and erect growth habit give this plant a unique ladderlike appearance.  Common in waste places, roadsides, etc. after summer rains begin, and blooms until frost.
FAMILY:  Euphorbiaceae (Spurge Family)