Staberoha

Plants caespitose. Rhizomes generally short. Culms simple, sterile culms rarely produced. Leafsheaths convolute, persistent. Male inflorescence of 1-10 pendent, rarely erect, usually obtriangular, rarely cylindrical spikelets; bracts large, obscuring florets. Male spikelets with many florets; perianth compressed, segments 6, equal or subequal, outer lateral ones boat-shaped, keeled; anthers oblong, apiculate; ovary rudimentary. Female inflorescence of 1-6 cylindrical to spindle-shaped, rigidly erect spikelets; bracts more than 10, all fertile, much longer than florets. Female spikelets with many florets; perianth compressed, persistent, lateral outer segments sometimes winged or keeled, chartaceous to osseous; staminodes minute; ovary compressed, 1-locular; styles 3, 2 or rarely 1, free or united at base, plumose. Fruit a compressed nutlet.