Plant: Annual; stem prostrate, glabrous to hairy; sap milky

Leaves: cauline, opposite, short-petioled, 4-15 mm; stipules separate, thread-like; blade ovate to lanceolate, glabrous to hairy, tip acute to obtuse, margin entire, rolled down

INFLORESCENCE: flower-like, generally 1 per node; involucre 1.5-2 mm, obconic to bell-shaped, glabrous to hairy; gland < 1 mm, round, appendage wider than gland or 0

Flowers: Staminate flowers 40-60 generally in 5 clusters around pistillate flower, each flower a stamen; Pistillate flower: 1, central, stalked; ovary chambers 3, ovule 1 per chamber, styles 3, divided 1/2 length

Fruit: capsule, 2-2.5 mm, spheric, lobed, glabrous to hairy; Seed 1.5-2 mm, ovoid, widely 3-angled, smooth to shallowly wrinkled, white

Misc: Sandy soils; < 800 m.