Eurycoma longifolia

Eurycoma longifolia





Vernacular Names

Malaysia Tongkat ali, Bedara pahit, Penawar pahit, Lempedu pahit, Muntah bumi
Indonesia Babi kurus (Java), Tungke ali (Sumatera)
Thailand Phiak (Peninsular), Tung saw
Laos Tho nan
Cambodia Antong sar, antoung sar
Vietnam C[aa]y b[as] b[eej]nh

Geographical Distributions

This plant is found in Southern Burma (Myanmar), Indo-China (Cambodia, Laos and Vietnam), Thailand, Peninsular Malaysia, Sumatra, Borneo and the Philippines (subsp. eglandulosa (Merr.) Nooteboom only).


This is a spindly tree or shrub, up to 10 m tall with bisexual flowers on the same tree. It can be without branches, or with a few upright branches and each crowned by an umbrella-like rosette of leaves.

The leaves are up to 100 cm long with leaflets lance-shaped to reverse egg-shaped-lance-shaped size 5-20 cm x 1.5-6 cm.

The petals are lance-shaped to egg-shaped or reverse egg-shaped-oblong size 4.5-5.5 mm x 2-3 mm. It is lately hairy on both surfaces. The styles are rather long with a stalk on the lower surface 5(-6)-lobed stigma and positioned at about 1 mm above the fruits.

The fruit is 10-17(-20) mm x 5-12 mm.

Ecology / Cultivation

E. longifolia is common in the understorey of primary and secondary forest on a wide range of soils and is locally abundant. It is rarely occurs up to 1000 m altitude.

Line Drawing / Photograph


Read More

1) Cultivation

2) Safety

3) Malaysian Herbal Plants


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