Annual herb, 0.2-0.8 m high, branched near base. Leaves ovate to elliptic, small, up to 30 x 20 mm, with 2-4 coarse, denticulate teeth on each margin. Flowers greenish, minute, in small, dense, rounded, axillary clusters at most of nodes. Perianth: segments normally 5, with wing-like keel broadening upward. Flowering time Sept.-Apr. Seeds deep, red-brown.
Erect annual herb, up to 0.8 m high. Flowers in dense axillary clusters. Leaves ovate, margins sinuate-dentate, surfaces densely pubescent, distinctly petiolate. Flowers green.