Parinari costata (Korth.) Blume, Melang. Bot. 2 (1855)

Latin for 'mid-vein', referring to the clear venation of the leaves.

Ferolia costata (Korth.) O.Kuntze
Ferolia polyneura (Miq.) O.Kuntze
Lepidocarpa costata Korth.
Parinari bicolor Merr.
Parinari rubiginosa Ridl.
Parinarium costatum var. rubiginosum Ridl.
Parinarium helferi Hook.f.
Parinarium polyneurum Miq.

Emergent tree up to 70 m tall and 117 cm dbh. Stipules ca. 5 mm long, dropped early. Leaves alternate, simple, penni-veined, glabrous to hairy below. Flowers ca. 4 mm diameter, white, placed in panicles. Fruits ca. 30 mm long, brownish with lighter dots, drupes.

In undisturbed mixed dipterocarp, swamp and sub-montane forests up to 1400 m altitude. On hillsides and ridges with sandy to clay soils, sometimes in swamps. In secondary forests usually present as a pre-disturbance remnant.

Thailand, Peninsular Malaysia, Sumatra, Borneo (Sarawak, Brunei, Sabah, East-Kalimantan), Philippines.

Local names
Borneo: Bugan, Mambatu, Mengkudur, Merbatu, Piak angok.