Ploiarium alternifolium (Vahl) Melchior, Nat. Pflanzenfam. ed. 2, 21 (1925)

Latin for 'alternate leafs', referring to the position of the leaves along the twigs.

Hypericum alternifolium Vahl

Understorey tree up to 13 m tall and 18 cm dbh. Stipules absent. Leaves alternate, simple, penni-veined, glabrous, margin sometimes slightly toothed. Flowers ca. 22 mm diameter, white-yellow-pink-red, placed solitary. Fruits ca. 15 mm long, red-blue, dehiscent capsules, opening from base to tip.

Usually in open places in scrub or disturbed mixed dipterocarp, keranga and swamp forests up to 500 m altitude. Mostly on alluvial sites with sandy soils, but also on hillsides and on clay.

The wood is used in house construction.

Indo-China, Peninsular Malaysia, Sumatra, Borneo (throughout the island).

Local names
Borneo: Cengkodo hutan, Dungohoi, Hingasong, Jingau, Lahumai, Sauma, Saumah, Srumah, Suama.