Canthium glabrum Blume, Bijdr. Fl. Ned. Ind. (1827)

Latin for 'without hairs'.

Canthium carinatum Pierre ex Pit. [Invalid]
Canthium glabrum var. pedunculatum Pit.
Plectronia glabra (Blume) Benth. & Hook.f. ex Kurz
Plectronia glabra (Blume) Koord. & Valeton [Illegitimate]

Understorey tree up to 18 m tall and 27 cm dbh. Stipules ca. 3 mm long, pointed triangular. Leaves opposite, simple, penni-veined, glabrous, sometimes slightly asymmetrical. Flowers ca. 6 mm diameter, white-yellow-purplish, with short corolla tube, placed in axillary bundles or small panicles. Fruits ca. 27 mm long, green-white-yellow-reddish, often 2-3-lobed drupe.

In undisturbed to slightly disturbed (open) mixed dipterocarp, keranga and sub-montane forests up to 1700 m altitude. On alluvial sites and hillsides with sandy to clay soils. In secondary forests usually present as a pre-disturbance remnant.

India, Indo-China, Thailand, Peninsular Malaysia, Sumatra, Java, Lesser Sunda Islands, Borneo (Sarawak, Brunei, Sabah, West- and East-Kalimantan), Philippines, Celebes.