Tree up to 30 m. high, with smooth, grey to greyish-green and brown bark.. Young branchlets (when dry) densely rusty-puberulous, slowly glabrescent.. Leaf-rhachis with a sessile ± depressed-hemispherical gland between each pinna-pair; glands also present between leaflet-pairs; pinnae 1–2 pairs; leaflets (1–)2–3 pairs, obovate to elliptic, 0.8–7 cm. long, 0.5–3.9 cm. wide (on saplings to 11 × 5.8 cm.), rounded or emarginate at apex.. Spikes about 3–10 cm. long, often paniculate.. Anthers without an apical gland.. Pod 23–60 cm. long, (1.8–)2.3–3.1 cm. wide.. Seeds about 7–8.8 cm. long, 1.7–2.3 cm. wide.
Secondary forest, lowland moist evergreen forest and riverine forest, less often in dry evergreen forest, at elevations up to 500 metres.
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