Poa orthoclada

Glabrous perennial, tufted, stems usually stiffly ascending and branched above base, culms erect, to c. 60 cm high. Leaves smooth or finely scabrous; sheath usually purplish; blade often bluish, inrolled-terete or folded, erect, to c. 40 cm long and c. 1 mm wide; ligule truncate, membranous, to 1 mm long, distinctly ciliate at apex. Inflorescence a narrow panicle, to 15 cm long and 8 cm wide. Spikelets 3–7-flowered, 4–6 mm long, green or tinged purple; glumes often shining, the lower slightly shorter than upper, both 3-nerved, scabrous along the keel, c. 2 mm long; lemma 5-nerved, rather narrow, 2–3 mm long, glabrous or virtually so except along margins near the base; web absent or very weakly developed. Flowers Oct.–Mar.