Poa sect. Sylvestres
Plants perennial; usually non-rhizomatous and non-stoloniferous, sometimes shortly rhizomatous, usually loosely tufted, infrequently densely tufted. Basal branching usually mainly pseudointravaginal, sometimes mainly extravaginal. Culms 20-126 cm, terete or weakly compressed. Sheaths closed for (1/20)1/3 to about their full length, terete or weakly keeled, basal sheaths readily deteriorating; ligules 0.1-3(4) mm, smooth or sparsely scabrous, truncate to obtuse, entire or lacerate, smooth or ciliolate; blades smooth or scabrous, glabrous, apices narrowly prow-shaped. Panicles 4-36 cm, erect or lax, pyramidal or lanceoloid, usually sparse, lower rachis internodes usually longer than (2)3 cm; nodes with 1-10 branches; branches ascending to spreading or eventually reflexed, lax or straight, angled, angles scabrous, with spikelets confined to the distal 1/5 – 1/3(1/2). Spikelets 2.5-8.2 mm, laterally compressed; florets (1)2-5(6), normal, bisexual; rachilla internodes smooth, usually glabrous, sometimes puberulent. Glumes distinctly keeled, scabrous; calluses terete or slightly laterally compressed, usually dorsally webbed, sometimes glabrous; lemmas 2.1-5 mm, lanceolate to broadly lanceolate, distinctly keeled, glabrous or hairy, apices with narrow, clear or white margins; palea keels scabrous, glabrous or with hairs over the keels; anthers 3, 0.4-2(2.6) mm.