Author: Prain.
Morphological description
Slender shrub to 2.4 m high, or tree 5-25 m high. Stipules minute.
Leaves (1- or 2-)3-foliolate, petiole and rachis 1-3 cm long, glabrous; petiolules very short, c. 5 mm. Leaflets chartaceous, elliptic-oblong to elliptic-lanceolate, 7-18 by 2-9 cm, pale yellowish-green, glabrous on both surfaces; apex acuminate or cuspidate; base cuneate or slightly unequally rounded; nerves c. 6 per side.
Inflorescences racemose, axillary, at the ends of new leafy shoots, 8-15(-30) cm long, pendulous, loosely flowered, the rachis glabrous, bracteoles minute; pedicels very short or almost invisible.
Flower: Hypanthium obscure. Calyx lobes oblong, c. 4 mm long, glabrous on both surfaces. Stamens 8 or 9; filaments free, glabrous, alternately shorter and longer; anthers broadly ovoid. Pistil shortly stipitate; ovary 1-3-ovuled.
Pods unknown.
Distribution
Thailand (Peninsular); in Malesia: Malay Peninsula (Perak, Wellesley, Johore).
Habitat & Ecology
In dense forest in swampy ground at low altitudes. Flowering in Febuari and March.