Plant: Prostrate annual forb branching from central point; herbage generally glaucous; stems sometimes pubescent, with milky sap Leaves: leaves opposite, inequilateral at base, margins widely serrate INFLORESCENCE: flower-like, generally 1 per node, dense on short lateral branches; involucre < 1 mm, obconic, glabrous; gland < 0.5 mm, round to elliptic; appendage wider than gland, entire or shallowly 2-lobed, white Flowers: flowers monoecious borne in cyathia; petaloid appendages minute; ovary and capsule glabrous, ~1.5 mm long, widest at middle; seeds transversely ridged. Fruit: Fruit: capsule, round to 3-angled or -lobed in X -section; Seeds 1-2 per chamber, generally 4-angled, smooth or sculptured; seed scar appendage sometimes present, pad- to dome-like Misc: Sandy flats; < 200 m.