Herbs, perennial, cespitose, rarely solitary, 4--25 cm. Stems compact. Leaves in fans, 3--8(--10) cm; sheath base with distinct chestnut brown patch; blade olive green, narrowly linear, flat, 1.5--5 mm wide, smooth, margins smooth. Inflorescences: scape sheaths equaling principal leaves; scapes narrowly linear, 0.5--1 mm wide, distally 2-ribbed; spikes ovoid, mostly longer than broad, 3--8 mm, apex acute; fertile bracts 4--5 mm, margins entire, apex keeled. Flowers: lateral sepals included, strongly curved, 2.5--3.5 mm, keel concolorous, firm, ciliate; petals unfolding in morning, blade obovate, 3 mm; staminodes bearded. Seeds translucent, broadly ellipsoid, 0.3 mm, finely ridged longitudinally, with fainter cross-ridges. 2n = 18.
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