Stems puberulous to glabrous, striate. Leaves with puberulous to glabrous, rugulose petioles 0.5-2 cm; lamina elliptic, lanceolate or sometimes subovate, base cuneate to rounded (to subcordate), apex acute to obtuse, often acuminate, 6.5-11 (-17) by 2-4(-8.5) cm, with 3-5 subpalmate basal nerves apart from 2-6 pairs of lateral nerves, main nerves tending to link up towards the margin, midrib on lower surface rugulose near the base, glabrous, stiffly papyraceous. Inflorescences axillary or cauliflorous, pubescent, 2-8 (-17) cm long bearing 1-few-flowered peduncled cymes c. 0.5 cm long. Male flowers yellow; inner sepals broadly elliptic 2 mm long, subglabrous; petals 3 or 6, cuneate, emarginate, 1 mm long, glabrous; stamens 3, clavate, 1.5-2 mm long. Female flowers: inner sepals orbicular, 2 mm long, externally puberulous; petals 6, oblong-elliptic, 1 mm long; carpels c. 8-9, less than 1 mm long, borne on short branches of a glabrous gynophore; stigma sessile. Drupes red, borne on a carpophore 3-4 mm long with branches 2-3 mm long, subcompressed, obovoid, 7-10 by 6-7 mm, glabrous; endocarp transversely and irregularly ridged.
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A slender woody climber. The flowers are yellow.
Lowland and hill forest. Limestone hills, evergreen forest near the sea and also by the side of streams in scrub jungle at low elevations up to 200 metres. In Vietnam the plant is also found on rocky and clayey soils up to 800 metres.
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In Thailand: limestone hills, evergreen forest near sea and also by the side of streams in scrub jungle at low altitudes up to 200 m; in Vietnam: on rocky and clayey soils up to 800 m; in Malaya: Kedah Peak at 1300 m alt.
A tropical plant. It grows in limestone areas.
Uses. Leafy shoots mixed with other plants are used in Cambodia for the preparation of a medicine for dysentery (MARTIN, 1971). Used for cordage in Vietnam. Widely used in Thailand as a flavouring in cooking.
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The leaves are pureed then used to get rid of the bitterness of some spicy bamboo shoots. This is eaten with rice. It is used in soups and as a food colouring. The leaf spine is filtered out.