Trees. Twig pith vesselless. Indumentum of simple hairs. Leaves imparipinnate; rachis compressed, not swollen at points of attachment of leaflets; abaxial surface of leaflets papillate, glandular. Inflorescences corymbose cymes with long peduncles. Calyx 4-or 5-lobed, the lobes imbricate. Petals 4 or 5, ± imbricate. Androecium with cylindrical staminal tube to 1/3 length with 8 or 10 filaments with bifid apices. Disk annular. Ovary 2-or 3-locular, each locule 2-ovulate; stylehead 2-or 3-lobed. Fruit a capsule; pericarp with sclereids. Seeds 1 or 2, arillate. 2n = 28.