Walsura robusta Roxb.

Trees to 25(–31) m tall, dbh to 1.5 m; outer bark grey-brown, inner bark pink-red. Leafy twigs 2–3.5 mm thick, glabrous to puberulous with simple trichomes, bark dark brown to black and very densely lenticellate. Leaves 14–18(–28) cm long, 2-jugate; petiole 2–4(–6) cm long, 0.5–1.8 mm thick, semi-terete and flattened adaxially for entire length, glabrous to puberulous with simple trichomes, usually sparsely to densely lentiqellate; petiolule ± terete (to slightly flattened adaxially), (of distal pair leaflet:) 0.4– 1(–1.7) cm long and 0.5–1 mm thick. Lamina of distal pair leaflet 6.4–12.5(–15.5) by 2.8–4(–6.5) cm, of terminal leaflet 6.5–10.5(–16.5) by 3–4(–7) cm, all leaflets (slightly obovate-)elliptic to ovate (basal leaflets usually slightly smaller and tending more to ovate), base acute to short-attenuate, apex acuminate, sub-coriaceous; adaxial surface with no veins prominent, abaxial surface with only midrib and costae prominent and glaucous (in vivo) only in islands between the smallest veins giving surface a whitish-dotted appearance, abaxial surface glabrous to extremely sparsely pubescent with simple trichomes (usually on the sides of the midrib); 5–7(–8) (distal pair leaflet) and 6–8 (terminal leaflet) costae on either side of the midrib; glands present or absent and occasionally conspicuous. Inflorescences clustered around shoot apex in the axils of caducous undeveloped leaves or below in the axils of caducous undeveloped or (far less commonly) fully expanded leaves, 5–10(–18) cm long at anthesis, each an open thyrse, branched up to third order (excluding pedicels), first order branches up to (1.5–)3–5 cm long, primary rachis glabrous to densely puberulous with simple trichomes and usually dark brown to black and densely lenticellate. Flowers unisexual (and hermaphrodite?), scented, just prior to opening ± cylindrical to inversely conical, 2.7–4 by 2.1–3 mm, at maximum opening 2.5–4.3 mm diam. with no size differences between the sexes. Calyx 0.9–1.3 mm long, lobes 0.7–0.9 mm long. Petals 2.5–3.4 by 0.9–1 mm, valvate (to slightly imbricate), apex acute with upper c. 1/4 of petal incurved at c. 90° prior to maximum opening, puberulous inside and out. Androecium of discrete filaments, each filament triangular and 1.2–1.3 mm long and 0.6–0.7 mm wide at the base with acute apex, glabrous to sparsely puberulous inside and out. Anthers 0.46– 0.50 mm long with a blunt end and no beak, sessile on filament apex, glabrous, the only difference between the sexes being that the female produces solely deformed (i.e. infertile) pollen. Disk 0.2–0.4 mm high, minutely puberulous. Style in male flower 0.70–0.75 mm long, 0.27–0.33 mm diam., in female flower 1.1–1.2 mm long, 0.4– 0.7 mm diam., cylindrical to narrowly conical, glabrous except for ovary-type trichomes near the base. Stigma capitate to short conical, 0.6–0.7 mm diam. at base 0.2–0.5 mm high, with shallow depression at centre (in male) or slightly 2–lobed (in female), below (in male) or above (in female) the level of the anthers at anthesis. Fruit a 1-or 2-seeded berry, globose, 1.1–1.9 cm diam., olive-green in vivo and brown in sicco, puberulous, pericarp thin but coriaceous with very thin fibrous endocarp the inside of which (facing the seed) is densely pubescent with simple trichomes. Seeds ± globose or (in 2-seeded fruit) hemiglobose and 0.7–1.3 cm long, completely to almost completely enveloped in an aril in vivo, cream-coloured and sweet to taste.

Sparse or dense forests in hilly regions in southern China. In evergreen or mixed deciduous forest, growing on granite bedrock, often near streams; at elevations up to 400 metres, occasionally to 800 metres.

The ripe fruit are eaten raw.

Can be grown by seedlings.