Agrostis gigantea

Koca tavusotu

Loosely tufted perennial with numerous creeping rhizomes. Stems 40-90 cm, erect or geniculately ascending from base, occasionally procumbent at base, slender to stout, smooth and glabrous. Leaf sheaths glabrous; ligule 1.5-4 mm, obtuse at apex, toothed when mature; blades 3.5-20 cm x 1.3-5 mm, linear, acuminate, flat, dull green, glabrous to slightly scabrid, firm. Panicle 6-28 x 1-12 cm, usually pyramidal, very lax; branches to 9 cm, aculeolate; pedicels 0.7-3.5 mm, clavate. Spikelets 2-3.5 mm, lanceolate, dark purple to brownish. Glumes subequal, lanceolate, acute, dorsally aculeolate. Lemma 1.6-2.5 mm, ovate to oblong, truncate at apex, minutely hairy at base, usually awnless, with a somewhat subterminal awn. Palea 1/4-2/3 as long as lemma. Anthers 1-1.5 mm. Fl. 7-8. Marshy ground, on sand of river bed, mountain slopes, nr s.l.-2350 m.

Europe to E. Asia. Introduced in N. America and New Zealand. Euro-Sib. element.