Dracontomelon dao (Blanco) Merr. & Rolfe

Last updated: 20 May 2015

Scientific Name

Dracontomelon dao (Blanco) Merr. & Rolfe


Comeurya cumingiana Baill., Dracontomelon brachyphyllum Ridl., Dracontomelon celebicum Koord. [Invalid], Dracontomelon cumingianum (Baill.) Baill., Dracontomelon edule (Blanco) Skeels, Dracontomelon edule Merr. [Illegitimate], Dracontomelon lamiyo (Blanco) Merr., Dracontomelon laxum K.Schum., Dracontomelon mangiferum (Blume) Blume, Dracontomelon puberulum Miq., Dracontomelon sylvestre Blume [1]

Vernacular Name

Malaysia Sengkuang (Peninsular; Sabah); un­kawang (Sarawak); sarunsab (Dusun, Sabah) [2]; chengkuang, bengkuang, surgan, sakal, sepul [3]
English Argus pheasant tree, new guinea walnut, pacific walnut [4]
China Ren mian zi, J'n mien tz [4]
Indonesia Dahu (General); sengkuang (Kalimantan); basuong (Irian Jaya) [2]; rau [3]
Thailand Ka-kho, sang-kuan (Pe­ninsular); phrachao ha phra ong (Chiang Mai) [2]; goh sang guan, ka-kho, phra chao ha phra ong, sa gua, saen taa lom, ta goh, tagoo, sang kuan [4]
Philippines Dao (General), ma­liyan (Tagalog) [2]
Vietnam Chi sau, s[aa]u [4]
Papua New Guinea New Guinea walnut (Gener­al); mon (Pidgin) [2]; Loc [4]
France Dracontomelon [4]
German Drachenapfel [4]
Netherlands Drakeboom [4]

Geographical Distributions

Dracontomelon dao is found in India, Burma (Myanmar), Thai­land, Cambodia, southern China, throughout the Malesian area towards the Solomon Islands. [2]

This plant oc­curs in primary or secondary evergreen to semi­deciduous forests in areas with high rainfall or less frequently in areas with a short dry season where it is deciduous or partly so. It is found scattered on clayey to stony soils at 0-500(-1000) m altitude. [2]

Botanical Description

D. dao falls under the family of Anacardiaceae. It is a large tree that can reach up to 45(-55) m tall. [2]

The bole is branchless for up to 20(-25) m, measuring up to 100(-150) cm in diametre and with narrow buttresses up to 6 m high. The surface of the bark is irregularly scaly, and greyish-brown with brown or greenish patches. The in­ner bark is pink to red. [2]

The leaf rachis is 6-25(-44) cm long, with (7-)9-19 leaflets, alternate to opposite, measuring 4.5-20(-27) cm x 2-7(-10.5) cm, hairless or some­times pubescent below and with hairy domatia. [2]

The flow­ers are 7-10 mm long, in panicles measuring up to 50 cm long. The disk is minutely hairy. [2]


The density of the wood is (330-) 370-790 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. dao (Blanco) Merr. & Rolfe [2]


  1. The Plant List. Ver1.1. Dracontomelon dao (Blanco) Merr. & Rolfe[homepage on the Internet]. c2013 [updated 2012 Mar 23; cited 2015 May 19]. Available from: http://www.theplantlist.org/tpl1.1/record/kew-2777577
  2. 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. 283.
  4. Philippine Medicinal Plants. Dao. Dracontomelon dao (Blanco) Merr. & Rolfe. [homepage on the Internet]. c2014 [updated 2014 Oct; cited 2015 May 20] Available from http://www.stuartxchange.com/Dao.html