Stamens 5; filaments compressed below, filiform above, alternipetalous.
Leaves alternate, petiolate, entire.
Fruit with a persistent style.
Inflorescences supra-axillary.
Flowers bisexual, pedicellate.
Ovary with an excentric style.
Petals 5, valvate, free.
Calyx small, 5-fid.
Shrubs or lianes.