Poa compressa

The following description comes from the Flora of China Editorial Committee (2015): Perennials, strongly rhizomatous, shoots extravaginal. Culms wiry, compressed, erect, often geniculate at base, simple or sparsely tufted, 15Ð50(Ð60) cm tall, 1.5Ð2 mm wide, nodes compressed, 3Ð6, 2Ð5 exserted. Leaf sheaths compressed to keeled, smooth, uppermost closed for 1/10Ð1/5 of length, blades flat, 5Ð12 cm ? 1.4Ð4 mm, surfaces smooth or adaxially scabrid, ligule 1Ð3 mm, abaxially scabrid, truncate to obtuse. Panicle contracted or slightly open, erect, narrow, 4Ð11 ? 0.5Ð1(Ð3) cm, branches erect or steeply ascending, or eventually spreading, 1Ð3 per node, densely scabrid angled from base, longest 2Ð4 cm with spikelets moderately crowded from the base or in distal 2/3. Spikelets ovate-lanceolate, 3.5Ð5 mm, florets 2Ð4, glumes lanceolate, nearly equal, 2Ð3 mm, 3-veined, apex acute or thinly mucronate, keel scabrid, rachilla smooth or minutely bumpy, lemmas oblong, 2.3Ð3.5 mm, apex obtuse, keel shortly villous for 2/3 of length, marginal veins to 1/3, intermediate veins faint, areas between veins glabrous, callus sparsely webbed or glabrous, palea keels scabrid. Anthers 1.3Ð1.8 mm. Caryopses 1.5 mm long.