Sterculia macrophylla Vent.

Last updated: 24 August 2016

Scientific Name

Sterculia macrophylla Vent. (unresolved name)


Clompanus macrophylla Kuntze   , Hildegardia macrophylla Schott & Endl. [unresolved] [1]

Vernacular Name

Malaysia Kelumpang (Peninsular); kalumpang, tangkoranjoh (Sabah); pelajau (Sarawak) [2]
Indonesia Kelumpang (Riau Archipelago); kelumpang labi (Sumatra); hantap heulang (Sundanese, Java) [2]
Thailand Kletraet (Kanchanaburi) [2]
Philippines Tapinag, tapinag-laparan (Tagalog); balinad (Bisaya) [2]

Geographical Distributions

Sterculia macrophylla is distributed in Southern Thailand, throughout Malesia, except for the Lesser Sunda Islands, to New Britain and the Solomon Islands. [2]

Botanical Description

S. macrophylla is a member of the Sterculiaceae family. It is a medium-sized to fairly large deciduous tree which can reach up to 40 m tall, with bole measuring up to 65(-150) cm in diametre, with large buttresses, measuring up to 3 m high and 3 m wide, with smooth bark surface but fissured in square section  and slightly scaly or hoop-marked. It is greyish-white to greyish-brown with whitish spots. The inner bark is fibrous, pale pinkish-brown or yellowish-brown, mottled and with stout twigs measuring about 17-18 mm in diametre. [2]

The leaves are simple and entire, ovate or broadly elliptical to nearly orbicular, measuring (8-)12-40 cm x (6-)10-35 cm, mostly deeply cordate at the base and brownish or yellowish star-shaped hairy below. The petiole is (2-)4-20 cm long, with ovate or lance-shaped stipules and caducous. [2]

The inflorescence is axillary or subterminal, resembling a panicle, many-flowered and erect. The sepal is with obconical or bell-shaped tube, which is densely pubescent inside and 5 triangular or ligulate and with erect or recurved lobes that are shorter than or about as long as the tube. The male flowers are with 5-10 anthers. There are (1-)3-5 velvety brown follicles which are suborbicular, measuring 3-8 cm long and bright red or reddish-orange. The black seed is ellipsoid or oblong and measuring 1-2.3 cm long. [2]


S. macrophylla is common in primary and   secondary forests, often in mixed dipterocarp forests, sometimes in swamp forests, in loamy and clayey soils but also on limestone rocks, up to 900 m altitude. The wood is whitish to pale pink. The density is (120-)250-450 kg/m3at 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 S. macrophylla. [2]


  1. The Plant List. Ver1.1. Sterculia macrophylla Vent. [homepage on the Internet]. c2013 [updated 2012 Mar 26; cited 2016 Jun 30]. Available from:
  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.