Horsfieldia polyspherula (Hook.f. emend. King) J.Sinclair, Gard. Bull. Sing. 16 (1958)
Latin for 'many balls'.

Synonyms
Horsfieldia brachiata var. sumatrana (Miq.) J.Sinclair, Myristica collettiana King, Myristica glabra var. sumatrana Miq., Myristica integra Wall., Myristica polyspherula Hook.f.

Description
Sub-canopy tree up to 26 m tall and 43 cm dbh. Stem with red sap. Stipules absent. Leaves alternate, simple, penni-veined, glabrous to sparsely hairy. Flowers ca. 2 mm diameter, yellow-brownish, placed in a panicle. Fruits ca. 46 mm long, orange-brown, glabrous, dehiscent capsules. Seeds with undivided orange-red aril.

Ecology
In undisturbed to slightly disturbed (open) mixed dipterocarp, keranga and peat-swamp forests up to 900 m altitude. Mostly on hillsides and ridges, rarely on alluvial sites. On clay to ultramafic soils. In secondary forests usually present as a pre-disturbance remnant.

Distribution
Peninsular Malaysia, Sumatra, Borneo (throughout the island), Philippines.

Local names in Borneo
Darah-darah, Kumpang, Kumpang balau, Pendarahan.