Deyeuxia affinis

Narrowly tufted or shortly rhizomatous perennial, culms erect, to 20(–30) cm high. Leaf-blades stiff, folded, or the margins inrolled, smooth and glabrous on the outer (lower) surface, minutely scabrous on the margins and upper surface, to 6 cm long and c. 1 mm wide, apex often slightly thickened and bluntish; ligules truncate, minutely ciliate at apex, 1–3 mm long. Inflorescence a narrow contracted panicle 2–5 cm long. Spikelets 2.8–3.5 mm long, usually purplish at least when young; glumes narrowly acute, sometimes shortly mucronate, subequal or the upper slightly longer, scabrous along the keel in the upper part, upper margins silvery-hyaline; lemma acute, slightly shorter than the spikelet, indistinctly 5-nerved, smooth or minutely scabrous along the nerves toward the apex, not or barely hardened at maturity, awned from just below the apex; awn straight, 0.8–2 mm long, exceeding lemma by up to 1 mm; callus hairs dense, about two-thirds as long as lemma; rachilla bristle 0.5–1 mm long, plumose, with hairs nearly reaching the apex of the lemma. Flowers Jan.–Feb.