Male inflorescences small and insignificant, in the axils of the leaves below the apical whorl, sometimes absent, sometimes with a few female flowers, or a few male flowers in the apical inflorescence; male flowers almost sessile, 2–4-merous, with stamens in the same number as tepals.
Stems to c. 20 cm. tall, fleshy, pinkish, glabrous; leaves of a pair equal, increasing in size upwards, the four uppermost forming an apparent whorl at the top of the stem by shortening of the uppermost internode.
Apical inflorescence entirely or almost entirely female; female flowers almost sessile, with one large and 2(3?) smaller tepals, and the same number of staminodes, stigma sessile, penicillate.
Leaves petiolate, 0.7–2 x 0.4–1.5 cm., ovate, apex acute or short acuminate; base ± broadly cuneate; margin serrate with 5–12 teeth per side, lamina glabrous on both sides.
A herb, erect, slender, simple or branched, up to 16 in. high, sometimes from a creeping base, glabrous
Achene c. 1.5 mm. long, broadly ovoid, compressed, smooth or ± verrucose.
Stipules up to 4 mm. long, broadly ovate, membranous, persistent.
Erect annual herbs, monoecious (or dioecious by abortion).
Petiole 2–25 mm. long.