Shrubs or small trees. Leaves simple, entire, coriaceous. Inflorescence an erect, axillary, densely-flowered spike, usually several crowded towards branch apices and apparently forming a terminal panicle; bracts narrowly elliptic, erect. Flowers regular. Perianth segments free from base, linear, spreading to recurved. Stamens all similar, epipetalous; filaments inserted just below middle of perianth segments, filiform; anthers 4-locular, dehiscing latrorsely. Hypogynous glands absent. Ovary sessile, ±pyramidal, 1-locular; ovule solitary, pendulous; style short; stigma lateral, thick. Fruit a nut, with 2 lateral wings and a narrower, abaxial wing, 1-seeded.