Walsura robusta Roxb.

Trees 10-25 m tall. Branches brown, with lenticels, glabrous. Leaves 15-30 cm; petioles 2.5-8 cm; leaflets 3 or 5, opposite; petiolules 0.5-2 cm, both ends inflated, with joints; leaflet blades oblong, elliptic, or lanceolate, lateral ones 5-14 × 1.5-5 cm, terminal ones 7-16 × 3-7 cm, papery to thinly leathery, both surfaces glabrous, adaxially lustrous, secondary veins 5-8 on each side of midvein and ± prominent on both surfaces, base cuneate, apex acuminate. Thyrses 8-17 cm, sparsely pubescent. Flowers 4-6 mm, pedicellate. Calyx short, outside pubescent; lobes ovate, apex acute. Petals white, oblong to elliptic, 3-4 mm, broad, slightly imbricate in bud, outside pubescent, apex acuminate to obtuse. Stamen filament base or basal to middle part connate into a tube, inside apically covered with short hard trichomes, apex acuminate and not lobed; anthers yellow, ovoid, inserted on tips of filaments. Disk red, cup- shaped, outside glabrous, inside pubescent. Ovary oblate, 2-locular, apically covered with trichomes; style cylindric; stigma disciform, tip not divergent. Berry globose to ovoid, 1-2 cm in diam., densely covered with yellowish gray trichomes. Seeds 1 or 2. Fl. Feb-Mar, fr. Apr-Jun.

Sparse or dense forests in hilly regions. W Guangxi, Hainan, S Yunnan [Bangladesh, Bhutan, India, Laos, Malaysia, Myanmar, Thailand, Vietnam].

Walsura robusta is a tree species described by William Roxburgh; it is included in the family Meliaceae. No subspecies are listed in the Catalogue of Life. In Vietnamese its name is lòng tong.