Buchanania arborescens (Blume) Blume, Mus. Bot. 1 (1850): 183

Synonyms
Buchanania angustifolia Benth. [Illegitimate]
Buchanania arborescens F.Muell. [Illegitimate]
Buchanania attopeuensis (Pierre) Tardieu
Buchanania bancana Miq.
Buchanania decandra Blanco
Buchanania florida A.Gray [Illegitimate]
Buchanania florida Schauer
Buchanania florida var. arborescens Engl.
Buchanania florida var. arborescens Pierre
Buchanania florida var. attopeuensis Pierre
Buchanania florida var. cumingii Engl.
Buchanania florida var. dongnaiensis Pierre
Buchanania florida var. lucida (Blume) Engl.
Buchanania florida var. petiolaris (Miq.) Engl.
Buchanania glaberrima Ridl.
Buchanania intermedia Wight
Buchanania longifolia Span.
Buchanania longifolia Blume
Buchanania lucida Blume
Buchanania lucida var. laxiflora Ridl.
Buchanania lucida var. palembanica (Blume) Miq.
Buchanania monticola Kaneh. & Hatus.
Buchanania muelleri Engl.
Buchanania nabirensis Kaneh. & Hatus.
Buchanania novohibernica Lauterb.
Buchanania palembanica Blume
Buchanania papuana C.T.White
Buchanania petiolaris Miq.
Buchanania platyphylla Merrill
Buchanania polybotrya Miq.
Buchanania pseudoflorida G.Perkins
Buchanania scandens Lauterb.
Buchanania solomonensis Merr. & L.M.Perry
Buchanania subobovata Griff.
Buchanania versteeghii Merr. & L.M.Perry
Coniogeton arborescens Blume

Description
Tree up to 40 m tall and 100 cm diameter, sometimes with small buttressed. Resin present which turns black when exposed to light and which may be irritant for people susceptible to it. Leaf stalk swollen at twig connection. The leaves are spirally alternately arranged and tend to be clustered towards the ends of the branches, smooth, leathery, elongated oblong, simple, 8-24 x 2.5-7 cm. Flowers placed in panicles at the branch tips. The flowers are very small, 3 x 1.5-2 mm, with 5-6 cream to yellowish white petals, usually five carpels present in each flower, but only one fertile. The edible fruits are globular, small (1 cm long), reddish to purple-black. Seeds about 6-9 x 6-8 mm, compressed globular.

Ecology
Found in mangrove swamps, peat swamps, coastal and creekbank thickets, kerangas, but also in forest, including forest on limestone and on open grasslands. Altitudinal range from near sea level to 500 m. Can tolerate drought, salt spray and can grow on infertile, waterlogged soils. This species produces large fruit crops in favourable seasons and the fruits are very popular with birds and other forest animals. Torresian Imperial Pigeons (Ducula spilorrhoa) appear to be very appreciative of the fruits of this species.

Uses
The light timber is used for light constructions, interior works, veneer, plywood, furnitures and novelties; Pulpwood; Firewood and charcoal. Fruits eaten raw by aboriginals in Australia, where it is also used medicinally.

Distribution
India and Andaman Islands to southern China, Taiwan, Southeast Asia to northern Australia and western Pacific.

Local names
Australia: Lightwood, Little Gooseberry tree, Satinwood, Sparrow's Mango.
Brunei: Jam Jam; Green plum, Kepala Tundang, Rengas Ayam.
Indonesia: Popohan.
Java: Getasan.
Kalimantan: Rawa-Rawa Pipit.
Peninsular Malaysia: Otak Udang, Otak Udang Umpul.
Philippines: An-An, Balinghasai, Malamangga.
Sabah: Beluno Beluno.
Sarawak: Rengas Laut.
Thailand: Chaa Muang, Luaet Khwai, Mamuang Khee Kratai.
Vietnam: Caay Muwng Ri.