Dillenia obovata (Blume) Hoogland

Last updated: 18 May 2015

Scientific Name

Dillenia obovata (Blume) Hoogland


Colbertia obovata Blume, Dillenia aurea var. blumei Pierre, Dillenia aurea var. harmandii Pierre, Dillenia aurea var. kurzii Pierre, Dillenia harmandii Gagnep. [1]

Vernacular Name

Malaysia Simpoh padang [2], simpoh ayer (Peninsular) [3]
Indonesia Simpur rimba, simpur talang (Sumatra); sempur batu (Sundanese, Java) [2]; junti (Javanese) [3]
Thailand San­-yai, san-tong (Peninsular) [2]; masan (South-eastern) [3]
Myanmar Zinbyun, mai-san [2].

Geographical Distributions

Dillenia obovata is found in Southern Burma (Myanmar), In­do-China, Eastern and Southern Thailand, Northern Peninsular Malaysia, Southern Sumatra and Western Java. [2]

D. obovata occurs in low­land, deciduous or evergreen secondary forests, also in regrowths, bamboo forests, teak forests and even regularly burned grasslands, up to 500 m altitude, but up to 1800 m in Indo-China. [2]

Botanical Description

D. obovata comes from the family of Dilleniaceae. It is a medium-sized to fairly large deciduous tree which can reach up to 35 m tall. It is often with rather crooked bole, branchless for up to 14 m (but usual­ly much less), and measures up to 70 cm in diametre. The but­tresses are absent or small, rather smooth and with flaky bark surface and yellowish-grey to reddish-grey. [2]

The leaves are obovate, measuring (16-)20-40(-60) cm x (10-)12-20(-26) cm and with slightly dentate to nearly entire margin. The petiole is up to 4 cm long. [2]

The flowers are 14-16 cm in diam­etre, with 5 sepals and bright yellow petals. The stamens are in 2 distinct groups where the inner ones are larger. The anthers are sharply emarginate at the apex and open by pores. [2]

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


The density of the wood is about 720 kg/m3 at 15% moisture content. [2]

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. obovata (Blume) Hoogland [2]


  1. The Plant List. Ver1.1. Dillenia obovata (Blume) Hoogland[homepage on the Internet]. c2013 [updated 2012 Mar 23; cited 2015 May 19]. Available from: http://www.theplantlist.org/tpl1.1/record/kew-2768301
  2. Dillenia obovata (Blume) Hoogl. 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 Medical Research. Compendium of medicinal plants used in Malaysia. Volume 1. Kuala Lumpur: HMRC IMR; 2002. p. 269.