Poa arida Vasey
Plains Bluegrass

Habit: 		Densely tufted perennial.
Culms: 		Erect, 20-60 cm. tall, simple.
Blades: 	Mostly basal, firm, 2-15 cm. long, usually 2-3 mm. wide, erect, flat or folded, culm leaf smaller.
Sheaths: 	Shorter than the internode, slightly rough.
Ligule: 	2-4 mm. long.
Inflorescence: 	Panicle exserted, narrow, dense, 2-10 (-15) cm. long, branches short, mostly erect,
		except perhaps the lower, spikelet bearing to the base.
Spikelets: 	Crowded, rather thick, 5-7 mm. long, 4-8-flowered, flat, the flowers perfect,
		the rachis articulate between the florets, the uppermost floret imperfect or rudimentary.
Glumes: 	2, subequal, persistent, strongly keeled, acute, 3-nerved, 3-4 mm. long.
Lemmas: 	3-4 mm. long, acute to obtuse, scarcely compressed; 5-nerved, densely villous
		on the keel and marginal nerves, and more or less villous on the lower part of the
		lemma, 2-keeled and 2-nerved.
Fruit: 		Grain.
Habitat: 	Prairies, plains and alkali meadows. June-July.
Kansas Range:	West two thirds.
Synonyms:	Poa glaucifolia Scribn. & Williams ex Williams
		Poa pseudopratensis Scribn. & Rydb.