Tree to 18 m, the bole to 12 m by 30 cm diameter. Leaves in whorls of 3 (rarely 4). Stipules ovate-elliptic or lanceolate, 1-3 by 0.3-1 mm. Inflorescences axillary or terminal, up to 14 by 5 cm, up to 400-flowered, but usually much smaller. Flowers with pedicels 0.5-1.5 mm long above articulation. Sepals 1.8-2.3 by 0.6-1.8 mm, connate for 0.5-1 mm, glabrous or sparsely puberulous near base only. Stamens with filaments 2.8-3.2 mm long and an-thers 0.2-0.3 by 0.3-0.4 by 0.1-0.2 mm. Ovary (2-)3-4-carpellate with carpels 0.6-0.7 by 0.3-0.4 mm, rather sparsely hirsute, each with 2 ovules; Fruit with fruitlets each c. 2.7 by 1.2 mm, with 1 or 2 seeds. Seeds including wings c. 1.5 mm long by 0.4 mm diameter, smooth.
Asia-Tropical, New Guinea from the Arfak Mts in the west to Mt Simpson in the southeast present
Malesia: scattered in mainland New Guinea from the Arfak Mts in the west to Mt Simpson in the southeast.