Arundinaceous small erect spineless glabrous pinnate-leaved or pinnatisect monoecious palms with infrafoliar inflorescences: flowers small, in branched spadices, on long slender rachillae, normally 1 pistillate between 2 slender stami-nates but placement often irregular; spathes long and slender, at base of spadix and at first inclosing it; staminate flowers with 3 long narrow valvate petals and 3 small connate sepals, stamens 6; pistillate flowers much smaller, sepals and petals imbricate, pistil 3-loculed, staminodia present: fruit a small ellipsoid drupe-like body, 1-seeded, scarcely fleshy, about 1 cm. long; embryo basilar.