FNA 2003, Gould 1980

Common Name: screwleaf muhly Duration: Perennial Nativity: Native Lifeform: Graminoid General: Tufted perennial with stems 25-70 cm, erect, rounded near the base, sheaths not keeled but rounded near base, glabrous internodes, sheaths glabrous, stiff, becoming flattened and papery. Vegetative: Blades 7-25 cm, 1-4 mm wide, flat to involute, scabrous below, spiculate above, becoming conspicuously coiled like wood shavings with age, ligules 10-20 mm, thin, membranous, tapering to a slender tip as much as 8 mm long, broken off in age. Inflorescence: Contracted panicles 8-25 cm long, 0.5-3 cm wide, not dense, primary branches 0.5-8 cm, appressed or diverging up to 30 degrees from the rachises, bearing spikelets nearly to the base, pale yellow or bluish-green, spikelets 3.5-7 mm; glumes pale, unequal, minutely roughened, unawned or awn tipped, lower shorter than upper, upper equaling or exceeding the florets, 3-veined, acuminate to acute, occasionally 3-toothed, awned, awns to 1.5 mm; lemmas 3.5-5.5 mm, pubescent on lower half of midveins and margins, hairs to 1 mm, apices scabrous, acuminate, awned, awns 12-27 mm, flexuous. Ecology: Found on rocky slopes and ridges, often in open pine forests from 6,000-9,500 ft (1829-2896 m); flowers March-June. Notes: Difficult to distinguish from M. montana other than its flowering in early spring and its very tightly coiled old blades. The former actually has coiled leaves as well, but the distinctiveness of how tightly coiled this species- leaves are is hard to miss. Ethnobotany: Unknown Etymology: Muhlenbergia is named for Gotthilf Heinrich Ernst Muhlenberg (1753-1815) a clergyman and botanist from Pennsylvania; straminea means straw colored. Synonyms: Muhlenbergia virescens Editor: SBuckley, 2010