Polyalthia hypoleuca Hook.f. & Thomson

Polyalthia hypoleuca Hook.f. & Thomson





Vernacular Names

Malaysia Akar larak hutan, melilin (Peninsular), selaut (Iban, Sabah).

Tepis(Sumatra), banet, usai (Bangka).

Thailand Sang yuu khaao (Nakhon Si Thammarat).

Geographical Distributions

Polyalthia hypoleuca is found in Peninsular Thailand, Peninsular Malaysia, Sumatra, Bangka and Borneo.


Polyalthia hypoleuca is a small to medium-sized tree that up to 35 m tall with its bole diametre is up to 50 cm while the twigs are soon smooth.

The leaves are elliptical to narrowly elliptical, 6-12.5 cm x 2-3.5 cm, leathery, acute or rounded at base while the petiole is 3-7 mm long.

The flowers are in axils of leaves or fallen leaves. The petals are linear that up to 1.2 cm long and pale yellow. Monocarps are ellipsoid, 1-2 cm long while the stalk is 2-5 mm long and 1-seeded.

Ecology / Cultivation

Polyalthia hypoleuca occurs in lowland forest, also in peat-swamp forest, up to 600 m altitude.

Line Drawing / Photograph



  1. Plant Resources of South-East Asia No.12(3): Medicinal and poisonous plants 3.