Large trees to small trees. Buttresses absent. Spines absent. Stilt roots absent. Bark gray, brown; not peeling in strips. Slash brown. Vertical stripes in the inner bark or wood absent. Odor absent. Exudate absent. Terminal buds not enclosed by leaves.
Complex hairs absent. Stinging hairs absent. Mature twig indumentum absent.
Leaves whorled; 5-20 per whorl; scale-like.
Inflorescences present; terminal; on an unbranched axis; specialized inflorescence units present, or absent; specialized inflorescence units heads; numerous and persistent inflorescence bracts absent. Flowers at least some flowers unisexual; with male and female flowers on the same plant, or with male and female flowers on different plants; not stalked; with the parts barely visible to the eye; round; with male or female parts not raised on a column. Hypanthium absent. Disk absent. Perianth absent. Stamen