Croton oblongus Burm.f., Fl. Ind. (1768)

Synonyms
Croton confusus Gage
Croton diadenus Miq.
Croton korthalsii Müll.Arg.
Croton laevifolius Blume
Croton oreoborneicus Croizat
Croton tiglioides Blume
Mallotus minahassae Koord.
Oxydectes korthalsii (Müll.Arg.) Kuntze
Oxydectes laevifolia (Blume) Kuntze

Description
Understorey tree up to 19 m tall and 26 cm dbh. Stipules very narrow, ca. 4 mm long. Leaves alternate, simple, penni-veined, glabrous, petiole with two conspicuous glands near the leaf base. Flowers ca. 3 mm diameter, greenish-white, placed in racemes with male flowers at the top and female flowers towards the base. Fruits ca. 5 mm long, greenish, dehiscent, warty, 3-lobed capsules.

Ecology
In undisturbed mixed dipterocarp and sometimes swamp forests up to 700 m altitude. Mostly on hillsides and ridges, sometimes alluvial. Usually on sandy soils, but also on clay and limestone. In secondary forests usually present as a pre-disturbance remnant tree.

Uses
Firewood.

Distribution
Thailand, Peninsular Malaysia, Sumatra, Java, Lesser Sunda Islands, Borneo (Sarawak, Brunei, Sabah, West-, Central- and East-Kalimantan), Philippines, Celebes, Moluccas, New Guinea.

Local names
Borneo: Bongis, Entupak, Langkan, Lia padang, Limpopomgoh, Nalop, Randang jagong.