Heynea trijuga Roxb.

Trees 5-10 m tall. Old branches glabrous, young parts yellow pubescent, black or dark brown when dry, with sparse lenticels. Leaves alternate, usually 20-36 cm; rachis cylindric or ridged, glabrous; leaflets 7 or 9, opposite; leaflet blades lanceolate, ovate, or oblong-elliptic, (5-)8-16 × (2.5-)3.5-5(-7) cm, membranous, abaxially pale and glabrous or yellow pubescent, adaxially glabrous, secondary veins 8-12 on each side of midvein, base oblique, margin entire, apex acuminate. Thyrses axillary, slightly shorter than leaves; peduncle pubescent. Flowers 3-4 mm. Pedicel ± as long as flowers, thin, pubescent or glabrous. Calyx 4- or 5-lobed; lobes orbicular to obtusely triangular, outside pubescent or glabrous. Petals 4 or 5, white or creamy white, oblong-elliptic, outside pubescent or glabrous. Filament tube 10-parted to below middle, pubescent or glabrous, segments inside covered with hard trichomes, tips 2-cleft; anthers 8-10, inserted between 2 lobes of filament tips. Ovary spherical, glabrous; style ± as long as filament tube; stigma spherical, tip 2-cleft. Capsule ellipsoid and with a carpopodium, (1.5-)2.5-3 × 1-2.5 cm, glabrous, 1-seeded. Seed black when dry, with a white aril. Fl. Apr-Jun, fr. May-Jun and Nov-Dec.

Guangdong, Guangxi, Gui-zhou, Hainan, Yunnan [Bhutan, India, Indonesia, Laos, Nepal, Philippines, Thailand, Vietnam].

Forests in hilly regions; 200-1300 m.

Heynea trijuga var. microcarpa Pierre; H. trijuga var. pilosula C. Candolle; Trichilia connaroides (Wight & Arnott) Bentvelzen; T. connaroides var. microcarpa (Pierre) Bentvelzen; Walsura trijuga (Roxburgh) Kurz; W. trijuga var. microcarpa (Pierre) S. Y. Hu; Zanthoxylum connaroides Wight & Arnott.

Heynea trijuga is a species of plant in the family Meliaceae. It is native to an area of tropical Asia from Nepal and India to Indonesia and the Philippines. It is threatened by habitat loss in Nepal.