Trees, shrubs or less often woody lianes; indumentum composed of simple hairs. Flowers usually hermaphrodite or sometimes only male, solitary or paired, axillary or extra-axillary, pedicellate; buds subglobose; bracteoles present. Sepals 3, valvate, smaller than the petals, joined at the base. Petals 6, in 2 whorls of 3, valvate, subequal or the outer slightly larger, free, thick. Stamens numerous, linear or cuneiform; anther-cells lateral or extrorse; connective-prolongation enlarged, capitate or truncate; filaments very short or obsolete. Carpels 5–20, free, oblong-cylindric or compressed, with ± 20–25 biseriate ovules; stigmas sessile, capitate, bilobed or dilated and dorsally compressed. Monocarps indehiscent, cylindrical, sessile or stipes almost obsolete, many-seeded, usually long, mostly curved or arcuate and twisted together. Seeds horizontal, ellipsoid, compressed, not arillate.