Poa sylvestris A. Gray. Woodland Bluegrass Habit: Perennial with short rhizomes. Culms: Tufted, erect, 30-100 cm. tall, simple, subcompressed. Blades: Blades of the culm 3-15 cm. long, the basal ones much longer, lax 2-6 mm. wide, ending in a boat-shaped tip. Sheaths: Shorter than the internodes, smooth or the lower upwardly scabrous. Ligule: Membranous, usually about 1-1.5 mm. long. Inflorescence: Panicle 10-20 cm. long, erect, open, the short flexuous branches spreading or reflexed in age, spikelet-bearing beyond the middle. Spikelets: 2-4-flowered, 2.5-4 mm. long; flat, on slender pedicels, the rachis articulate between the florets, the uppermost florets reduced or rudimentary. Glumes: Narrower than the lemmas: persistent, strongly keeled, acute, the first 2-2.5 mm. long, 1-nerved, the second 2-2.7 mm. long, 3-nerved. Lemmas: 2.5-3 mm. long, obtuse or acutish, 5-nerved, keels pubescent throughout, the marginal veins below the middle; the intermediate pair of nerves prominent, usually glabrous. Palea: Shorter than the lemma, 2-keeled and 2-nerved, pubescent on the keels. Fruit: Grain or caryopsis. Habitat: Rich, moist or rocky woods and thickets. May-July. Kansas Range: East third.