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Male flowers very shortly pedicellate; sepals 5, 1.5–1.75 × 1–1.25 mm, elliptic-obovate, rounded, yellowish-green with white margins; disk glands 5, free, 0.3 mm across, transversely elliptic, flattened, lobulate, papillose; stamens 3, filaments connate into a column 0.75 mm high, anthers 0.3 mm long, subsessile, strongly decurved, vertically held, connective produced into a small cylindric appendage, dehiscence longitudinal.
Female flowers: pedicels 1.5–2 mm long, not or scarcely extending in fruit; sepals 5, 3 × 1.5–2 mm, scarcely accrescent in fruit, elliptic, obtuse, green with narrow hyaline margins; disk 0.8 mm in diameter, somewhat irregularly 5–6-lobed; ovary 0.7 mm in diameter, subsessile, 6-lobed, smooth; styles 3, 0.4 mm long, free, slightly divergent, shortly bifid, stigmas papillose.
Seeds 1.4 × 1 × 1 mm, segmentiform, reddish-brown, with 14–15 somewhat irregular longitudinal rows of closely arranged transversely-disposed dark brown tubercles on the dorsal facet, and c. 12 irregular and fractured concentric arcs of such tubercles on each ventral facet, with innumerable parallel transverse striae between them.
Male flowers solitary or paired in short multibracteate cymules in the proximal axils of the leafy shoots, females solitary in the distal axils.
A slender annual herb up to 45 cm tall, suberect, unbranched at the base, glabrous, monoecious.
Scale leaves 1–3 mm long, linear-subulate, often not developed; stipules triangular-lanceolate.
Stipules c. 1 mm long, linear-subulate, soon blackening in the upper half.
Fruit c. 2 × 2.5 mm, slightly depressed-subglobose, smooth, olivaceous.
Lead shoot usually leafy; lateral shoots 2–5(8) cm long.
