Dillenia ovata Wall. ex Hook.f. & Thomson

Last updated: 19 May 2015

Scientific Name

Dillenia ovata Wall. ex Hook.f. & Thomson


Dillenia grandifolia Wall. ex Hook.f. & Thomson [1]

Vernacular Name

Malaysia Simpoh beludu (Peninsular) [2]; simpoh [3]
Indonesia Simpur minyak, pisang maru (Sumatra); simpur darut (Bangka) [2]
Thailand Tanokkot (North-eastern); san-khwang, san-bailek (Peninsular) [2]
Cambodia 'san 'nhai [2]
Vietnam s[oof] xoan [2]

Geographical Distributions

Dillenia ovata is distributed throughout Indo-China, Thailand, Peninsular Malaysia, Sumatra and Bangka. This plant occurs in open or secondary forest and on savannas, usually in the lowland but in Indo-China up to 1500 m altitude. [2]

Botanical Description

D. ovata comes from the family of Dilleniaceae. It is a medium-sized evergreen tree which measure can reach up to 20(-30) m tall. [2]

The bole is often rather knotted and branchless for up to 5 m and up to 40(—100) cm in diametre. The bark surface is flaky and reddish-brown in colour. [2]

The leaves are ovate to elliptical in shape, measuring about (7-)10-20(-30) cm x (5-)7-12(-15) cm, entire to obscurely dentate margin while the petiole is up to measure 4.5 cm long. [2]

The flowers are measure about 16 cm in diametre, with 5 sepals and lemon-yellow in colour of petals. The stamens are in 2 distinct groups where the inner ones is slightly larger, emarginate to mucronate anthers at the apex and opened by pores. [2]

The fruit is indehiscent while the seed is without aril. [2]


No documentation.

Chemical Constituent

No documentation.

Plant Part Used

No documentation.

Traditional Use

No documentation.

Preclinical Data

No documentation.

Clinical Data

No documentation.


No documentation.

Poisonous Management

No documentation.

Line drawing


Figure 1: The line drawing of D. ovata Wall. ex Hook.f. & Thomson [2]


  1. The Plant List. Ver1.1. Dillenia ovata Wall. ex Hook.f. & Thomson[homepage on the Internet]. c2013 [updated 2012 Mar 23; cited 2015 May 19]. Available from: http://www.theplantlist.org/tpl1.1/record/kew-2768306
  2. Dillenia ovata Wall. ex Hook.f. & ThomsonLemmens In: Lemmens RHMJ, Soerianegara I, Wong WC, editors. Plant Resources of South-East Asia No.5(2): Timber trees: Minor Commercial Timbers. Leiden, Netherlands: Backhuys Publishers; 1995.
  3. Herbal Medicine Research Centre, Institute for Medical Research. Compendium of medicinal plants used in Malaysia. Volume 1. Kuala Lumpur: HMRC IMR; 2002. p.269.