AGROSTIS HIEMALIS
38. Agrostis hiemalis (Walt.) B.S.P. HAIR GRASS, TICKLE GRASS, FLY-AWAY GRASS.
A small, tufted grass with the very narrow, soft leaves clustered in a basal rosette; growing commonly on dry, sandy soil in old meadows and pastures where the sod is open.
Leaves rolled in the bud-shoot. Sheath not compressed, slightly keeled, glabrous, smooth, pale green to white or purplish, split. Auricles absent. Collar narrow, inconspicuous, pale green. Ligule membranous, 1 to 2.5 mm. long, truncate or three-pointed, entire or finely lacerate, hairy on the back. Blade 0.5 to 2 mm. wide, 2 to 8 cm. long, soft, very sharp taper-pointed, often inrolled or involute and hair-like when dry, glabrous, distinctly ridged and scabrous on upper surface, smooth and distinctly keeled on under surface; margins scabrous.
