English Lao
Botanical descriptions Habitat and ecology Distribution
| Diagnostic characters : | Evergreen trees, bark blackish, fissured. Leaves simple, alternate, glaucous below, margin entire. Flowers bisexual, axillary, white with numerous stamens. Fruits capsular, seeds with a narrow wing. |
| Habit : | Evergreen tree up to 35 m tall. |
| Trunk & bark : | Bole straight, bark dark grey or almost black, deeply fissured. |
| Branches and branchlets or twigs : | Twigs terete, finely hairy. |
| Exudates : | Exudate absent. |
| Leaves : | Leaves simple, alternate and spiral, broadly ovate to lanceolate, apex acute or acuminate, base acute or rounded, glabrous, margin entire, sometime toothed near tip, often glaucous below. Stipules absent. |
| Inflorescences or flowers : | Flowers solitary or arranged in a few-flowered inflorescence, axillary, bisexual, pedicels longer than 0.5 cm. |
| Fruits : | Fruit capsule, up to 3 cm in diameter, woody, splitting into 5 sections. |
| Seeds : | Seeds many, kidney-shaped, surrounded by a narrow wing. |