Perennials. Stolons slender. Culms densely tufted, 2-12 cm tall, filiform. Leaf sheaths reddish, tubular, 0.5-1.5 cm. Spikelet pale purple, ovoid, ca. 3 × 2 mm, few flowered, apex obtuse. Glumes laxly imbricate, subdistichous at base of spikelet; basalmost glume empty, oblong, ca. 2 × 1 mm, 3-veined, amplexicaul for whole spikelet base, apex obtuse; fertile glumes greenish medially and purple on sides, ovate, ca. 1.8 × 1.2 mm, membranous, margin hyaline, apex acute. Perianth bristles 1-4, ca. 2 × as long as nutlet, retrorsely spinulose. Stigmas 3. Nutlet pale yellow, narrowly oblong, ca. 1 × 0.4-0.5 mm, obscurely 3-sided, longitudinally ridged, ridges separated by numerous cross-walls (trabeculae), apex contracted; persistent style base slightly inflated, conic, base ca. 1/3 as wide as nutlet. Fl. and fr. Apr-Nov.
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