Shrubs, 1.5 – 3 m tall; branchlets terete, c. 3 mm diam, appressed-pubescent. Leaves: blades oblong to oblong-lanceolate, 9 – 18 by 1.5 – 7 cm, coriaceous, glabrous above, thinly pubescent beneath, apex cuspidate-acute, acute or cuspidate-acuminate, base acute, midrib and nerves flat or slightly prominent above, conspicuously prominent beneath, nerves 5 – 9 pairs, nervules densely anastomosing, parallel; petioles 5 – 10 mm long, pubescent. Stipules triangular, 3 – 4 mm long, pubescent. Cymes sessile; bracts absent or small subulate bracts; 2 – 5 - flowered. Flowers sessile; calyx cupular, 3 – 5 mm long, subglabrous or puberulous, tube short, 1 – 2 mm long, limb 2 – 3 mm long, truncate or minutely dentate at apex, puberulous; corolla up to 10 – 12 mm long, hirsute outside, villous inside, lobes 5, ovate. Drupes subglobose, up to 10 mm diam, crowned by an enlarged cupular and truncate calyx limb, smooth on external surface; pyrenes usually 5, rare 4.
Sumber: A taxonomic revision of the Malesian species of Lasianthus (Rubiaceae)