Climbing shrub. Stems prickly, later with corky flanges, brown-tomentose, sometimes soon glabrous. Leaves: stipules triangular, c. 0.5 mm long, pubescent, caducous; petiole 1–2.5 cm long; rachis 5–10 (–15) cm long, tomentose, prickly; pinnae 3–6 pairs; leaflets 5–7 pairs, oblong or obovate-oblong, obtuse, 6–19 mm long, 4–9 mm wide, discolorous, shining above, puberulous to almost glabrous. Racemes 15–20 cm long, in terminal panicles, golden-pubescent and prickly; pedicels 3–4 mm long; bracts lanceolate, 3–5 mm long, caducous. Flowers scented. Sepals 2.5–4 mm long, pubescent but ± glabrous near margins. Petals all 3–4 mm long, yellow. Stamens 4–7 mm long, hairy in lowest third; anthers 0.8 mm long. Pistil 7–8 mm long, glabrous; stigma cup-like. Pod ovate, acute, 2.5–3 cm long, with a narrow wing along upper suture, glabrous. Seed 1, flat, brown.
Grows in alluvial loam and basaltic soil in vine forest and vine thicket, commonly near creeks, and in near-coastal rainforest.
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