English Lao
Botanical descriptions Habitat and ecology Distribution
| Diagnostic characters : | Bole spiny at base, exudates watery, brown-red. Twigs and leaves glabrous. Leaves simple, opposite, glaucous below; secondary veins obtuse, not looped. Flowers pink. Fruit a capsule. |
| Habit : | Deciduous tree up to 12 m tall. |
| Trunk & bark : | Bole straight, bark pale grey, fissured and flaking, young stems usually with spines. |
| Branches and branchlets or twigs : | Twigs terete, glabrous. |
| Exudates : | Exudate watery, brownish-red. |
| Leaves : | Leaves simple, opposite, glabrous, glaucous below, elliptic, apex acute to acuminate, base rounded to acute, margin entire. Primary veins single, secondary veins obtuse, tertiary veins reticulate. Stipules absent. |
| Inflorescences or flowers : | Flowers arranged in 3--5-flowered inflorescence, axillary, on leafless twigs, bisexual, pedicels up to 3 mm long. |
| Fruits : | Fruit a capsule, up to 1.2 cm long, covered by persistent sepals, splitting in 3 sections. |
| Seeds : | Seeds many, winged at one end. |