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Genus :

LIPOCARPHA

Family :

CYPERACEAE

Description


Annual or perennial sedges. Culms tufted, erect, smooth. Leaves basal; linear, flat to canaliculated; ligule absent. Involucral bract leaf like. Inflorescence capitate, terminal or pseudoterminal. Spikes 1-8 per inflorescence ovoid. Spikelet small, sessile, terete, densely many flowered. Glumes spirally imbricate, caducous, lower 1-2 empty. Flowers bisexual. Perianth consisting of 2 scales. Stamens 1-2, anthers oblong-linear. Style continuous with the ovary, stigmas 2-3. Nutlets obovate, ellipsoid to narrowly cylindric, trigonous or plano-convex, smooth, reticulate, enclosed by the hypogynous scales.

Key to the species

Serial Key Reference
1a. Leaf blade 2-4 mm wide; glumes lanceolate; nutlets 1.0-1.2 mm long; biconvex L. chinensis
1b. Leaf blade 0.6-1.0 mm wide; glumes deltoid-obovate; nutlets 0.5-0.6 mm long ; 3-sided to planoconvex L. squarrosa