Isolepis ludwigii Kunth

Perennial herb, mat-forming, up to 0.13 m high. Leaf blades 0.3-0.6 mm wide. Culm (peduncle) 0.3-0.7 mm in diam. Inflorescence with culms (peduncles) clustered at upper stem nodes, each bearing 1 terminal spikelet. Subtending bract very small, glumelike. Spikelets ovate to cylindric-lanceolate, 2.6-8.0 x 1.0-1.8 mm, 6-19-flowered. Glumes ovate, 1.5-2.8 x 0.6-1.0 mm, keel excurrent into minute point. Style branches 2. Flowering time Oct., Nov., Feb. Nutlet elliptical to broadly obovate, 0.8-1.8 x 0.4-0.9 mm, biconvex, whitish to reddish brown, surface minutely reticulate.