Osmoxylon micranthum (Harms) Philipson

A sparsely branched shrub to 8 m, sometimes trailing or semi-scandent, young parts uniformly setulose, buds without cataphylls. Leaves in terminal clusters; petiole up to 30 cm, rather narrow (2-4 mm ø), becoming sparsely setulose, channelled above, with a sheathing base prolonged as a membranous stipular ligule up to 3 cm long, and with a number of lacerate crests encircling the lower part of the petiole; blade deeply 3-5-or more rarely 7-lobed, or below the inflorescence sometimes simple, base cordate or emarginate, the central lobe up to 30 cm long, the lobes oblong, lanceolate or broadly elliptic, entire or irregularly lobed or incised, or with small sub-lobes, apices long cuspidate, acute, margin serrate, sinuses between the lobes broad and rounded, surfaces become sparsely setulose to subglabrous. Inflorescence a terminal compound umbel, often appearing subterminal by growth of a leafy braftch at the base of the peduncle; peduncle short (1-2 cm), heavily setulose, occasionally with a flowering ray arising from the axils of bracts on or below the peduncle, bearing distally many lanceolate bracts 5-10 mm long; primary rays 12-18, 10-20 mm long, setulose, with two lanceolate bracts at the apex, each ray ending in three branches; the central branch very short (2-3 mm) bearing a subglobose umbel of many (c. 40) small sterile bacciform flowers (c. 1.5 by 1 mm) with filamentous pedicels c. 2 mm long, and 1-2 cells each with 1 abortive ovule; the two lateral branches c. 2 cm long, with two minute bracts about their middle, setulose, terminating in a head of c. 20 sessile flowers surrounded by an involucre of small rounded bracts. Calyx rim obsolete. Corolla 4(-5)-lobed, united below, c. 2 mm long. Stamens 4(-5), filaments ribbon-like elongating beyond the corolla tube at anthesis, 3-4 mm, anthers small. Ovary shortly subcylindric, c. 1 mm high, faintly angled, glabrous, 1-5-, usually 4-celled, disk fleshy, rising slightly to the central stigmas. Fruit an ellipsoid drupe with 1-5 cartilaginous pyrenes; seeds with smooth endosperm.

In primary forest from the foothills to the montane mossy forest, often in swampy or deeply shaded situations, 700-2400 m.