Ovary obconic or subglobose, pubescent or tomentose, 5-locular; loculi 2-ovulate; styles 5, free or united into a single style; stigmas fleshy, papillose.
Capsule obconic, truncate and excavated at the apex, with 5 rather thick wings, dehiscent into 5 valves, with 1–2 seeds per loculus.
Flowers bisexual, solitary or axillary, in pedunculate, few-flowered cymes; pedicels articulated.
Small or large trees, more or less stellate-pubescent at least on the young parts.
Leaves petiolate, simple; stipules caducous, small.
Petals 5, often somewhat twisted.
Seeds with a unilateral wing.
Sepals 5, valvate.