Unarmed autotrophic trees, the young branches generally densely rusty-tomentulose, the hairs branched, the older stems often perforated. Leaves alternate, elliptic, acuminate at the apex, glabrous above, glabrescent below, with resin canals and laticiferous ducts. Inflorescences spicate, bracteate. Flowers bisexual, hypogy-nous, small. Calyx cupuliform to crateriform, small, (6-) 5-toothed, persistent but not accrescent. Petals 5 (or 6), connate into a campanulate corolla tube, puberulent to villous within, the lobes valvate in bud. Stamens 10 (or 12), in two whorls, the anthers dehiscing longitudinally, the filaments filiform, adnate to the corolla tube, antipetalous generally longer. Ovary 5-merous but often reduced to 3 or 4 locules by abortion, the stigma 3-to 5-lobed. Fruit a small ovoid or round drupe.