Habit : A small glabrous annual herbs, 7-18 cm tall with fibrous roots.
Stem : Tufted, stout or slender, trigonous.
Leaves : Usually shorter than the stem, erect, acuminate, flat, 1-nerved, flaccid.
Inflorescence : Umbel with 2-5 rays, or capitate with numerous spikelets crowded into a globose or oblong head.
Flowers :
Bracts 2-5, the longest reaching in well-developed specimens 3.5 in long, broader than the leaves at the base, gradually tapering into a fine point.
Spikelets oblong, flat, 6-20 flowered, usually brownish; rachillaot winged.
Glumes oblong, keel strong, produced into a recurved beak as long as the limb; sides many-nerved up to near the margin, pale or brown.
Stamen 1, anthers small, oblong.
Fruit : Nut narrowlyob ovoid, rounded and apiculate at the apex, tapering towards the base, trigonous, reddish-brown, stigmas 3, about as long as the style, capillary.
