Seed narrowly ovoid; aril lobate, spreading laterally from the sides of the hilum; embryo straight; cotyledons flattened; endosperm copious.
Stamens 10, 5 antisepalous ones longer than the 5 antipetalous ones.
Shrub or small tree with 1-foliolate long-petioled deciduous leaves.
Fruit a densely pubescent follicle, dehiscing by the ventral suture.
Ovules (1)2(3), inserted near the apex of the ventral suture.
Sepals 5, imbricate in bud, very shortly connate at the base.
Flowers 5-merous with androecium and gynoecium dimorphic.
Inflorescence racemose, axillary, few-flowered.
Petals 5, free, subequal, larger than sepals.
Carpel 1.