Leaves 3–5-foliolate, petiolate; leaflets 0.75–2.5 x 0.3–1.5 cm., reducing in size upwards and passing gradually into the sessile and finally simple bracts, narrowly obovate to obovate, rounded or truncate at the apex, cuneate at the base, harshly strigillose-pubescent on both sides, nerves somewhat impressed above and prominent below, petiole up to 2.5 cm. long, pubescent like the branches.
Stamens 10–13, about the same length as the petals; filaments slender, sometimes purplish towards the base and with the shortest one, or occasionally the shortest two, swollen just below the anther; anther-thecae up to 2.5 mm. long, linear-oblong.
Capsule up to 7 x 0.3 cm., on a glabrous gynophore up to 1.8 cm. long, linear, tapering at both ends, with a persistent style up to 2.5 mm. long; valves minutely strigillose or pubescent, with about 3 longitudinal nerves.
Petals up to 2.5 x 0.5 cm., rose-coloured or purplish, becoming yellow towards the base, with an oblong-lanceolate lamina gradually narrowing into a basal claw of about the same length.
Inflorescence racemose and terminal on the branches, moderately dense at first but the internodes elongating in fruit; pedicels up to 1 cm. long, slender, with short glandular hairs.
Erect or spreading herb c. 0–6 m. tall: branches striate with a coarse, whitish pubescence of longish hairs, some shorter hairs and scattered, subsessile, glandular hairs.
Ovary linear, with a very minute pubescence visible only above a magnification of x 25; style very short; stigma hardly wider than the style.
Sepals up to 8 mm. long, linear-lanceolate, acuminate or caudate-acuminate at the apex, with short, glandular hairs on both sides.
Seeds c. 1.5 mm. in diam., dark brown, almost black, transversely ridged.