Leaves spirally arranged, 5-7 nerved at the base, entire, undulate or not.
Inflorescence paniculate, terminal and axillary. Flowers hermaphrodite,
5-merous. Sepals united near the base, hairy outside, glabrous inside. Petals
free, glabrous, not glandular at the base. Stamens free, anthers dorsifixed,
subglobose, opening lengthwise, staminodes absent. Ovary 3-locular, each locule
with 2-4 ovules, style subulate, stigmas pointed. Fruit a capsule, with 3 pairs
of vertical wings, indehiscent.