Perennial shrubs, usually with a mixture of simple or centrifixed hairs and glandular hairs. Leaves alternate, entire, toothed or serrate, petiolate or sessile. Inflorescences terminal, consisting of 1–5 erect scorpioid cymes, or flowers solitary; bracts few or absent. Flowers pedicellate; sepals 5, basally connate, scarcely elongating after flowering; corolla regular, 5-lobed, rotate, hairy outside but hairs wearing off with age, blue or white; stamens with a short free filament, inserted in throat of corolla-tube, anthers narrow-ovoid, exposed above corolla-tube forming an erect column around the style, appendage terminal, sometimes longer than anther; ovary conical to more or less cylindric, 2- or 4-celled; style terminal, simple, stigma minute. Fruit an indehiscent leathery drupe with 1 or rarely 2 pyrenes, smooth or slightly wrinkled when dry.
About 18 species, all endemic to mainland Australia.
Often placed in the family Ehretiaceae due to the entire ovaries, drupaceous fruits and woody stems.