Perennial, ± erect herb up to 1 m.. Stems fleshy, becoming woody towards the base, puberulous, the nodes swollen.. Leaves oblong-lanceolate, 1–5×0.3–1 cm., the base cuneate, the apex rounded to acute, often clustered on short shoots, puberulous.. Inflorescence a large diffuse terminal panicle, the flowers solitary on very slender peduncles appearing as pedicels ± 6–20 mm. long; branches glabrescent, often glaucous.. Perianth 1.5–4.5 mm. long; upper portion white to pink, 0.5–3.5 mm. long.. Anthers (2–)3, slightly exserted.. Ovary 0.5–1 mm.. Anthocarp narrowly ± ellipsoid, 3–4 mm.×1–1.5 mm., 5-ribbed, rounded at the apex, ± glabrous on the ridges, puberulous to glabrescent in the grooves.