A weak, rather soft diffusely branched annual herb; stems up to 30 cm high or in extent, glabrous, subpellucid, green .Lower leaves opposite, upper leaves alternate.Petioles 1–3 cm long.Leaf blades 1.5–4.3 × 1–3 cm, ovate, obtuse or subacute at the apex, truncate or wide-cuneate at the base, crenate-dentate on the margins except at the base, very thinly membranaceous, 3–5-nerved from the base, glabrous or almost so beneath; lateral nerves in 3–4 pairs, sparingly pubescent above.Stipules 0.5–1 mm long, subulate to linear-lanceolate.Inflorescences 1–2.5 cm long; male bracts 1–1.5 mm long; female bracts 4–5 × 1–1.5 mm.Male flowers: pedicels c. 1 mm long; calyx lobes 0.5 mm long, ovate, acute, glabrous, greenish-white; stamens minute.Female flowers ± sessile; calyx lobe, when present, resembling a stipule; ovary c. 1 mm in diameter, 2-lobed, apically setose, the setae with bulbous based hairs, green, tipped purplish; styles c. 1 mm long.Fruit usually 2 × 2–3 mm, 2-lobed, smooth, apically setose, stramineous, purplish tipped.Seeds 1.5 × 1.2 mm, reticulate, shiny, dark brown to black.