Stemonurus secundiflorus Blume, Bijdr. (1826)
Latin for 'with flowers on one side'.

Synonyms
Croton laurifolius Nor., Lasianthera secundiflora (Blume) Miq., Lasianthera secundiflora var. sumatrana Miq., Stemonurus lanceolatus Becc., Stemonurus pauciflorus Ridl., Stemonurus ridleyanus Sleum., Stemonurus secundiflorus var. valetonii Hochr., Urandra lanceolata (Becc.) O.Ktze, Urandra secundiflora (Blume) O.Ktze

Description
Sub-canopy tree up to 27 m tall and 38 cm dbh. Stipules absent. Leaves alternate, simple, penni-veined, venation barely visible, glabrous. Flowers ca. 7 mm diameter, green-white-yellow, placed in umbells. Fruits ca. 46 mm long, green, (floating) drupes.

Ecology
In undisturbed (peat)-swamp forests up to 100 m altitude. In secondary forests usually present as a pre-disturbance remnant tree. Fruits dispersed via water?

Uses
Wood for indoor construction. Fruits edible after repeated cooking.

Distribution
Peninsular Malaysia, Sumatra, Java, Borneo (Sarawak, Sabah, West-, Central- and East-Kalimantan).

Local names in Borneo
Ensurok, Entaburok, Jerumut, Kepot bejuku, Semanten, Semburok.