Trisetum flavescens
Trisetum flavescens
Palah
Laxly caespitose perennial. Stems 30-70 cm, erect or geniculate, smooth and glabrous, sometimes hairy just below nodes. Basal leaf sheaths always hairy, upper ones glabrous; ligule 6-7 mm. Leaf blades 3.5-12 cm x 2-5 mm, linear, acuminate, usually pubescent, especially on upper surface, sometimes glabrous. Panicle 6-10.5 x 1-2 cm, rather lax, ± golden coloured to purplish; pedicels 1-7 mm, slightly aculeolate. Spikelets 4-7.5 mm, oblong or finally wedge-shaped. Rachilla segments slightly hairy. Glumes broadly hyaline; lower 2.2-4.1 mm, upper 3.7-6.8mm. Lemma 4.2-7mm,awned above middle; callus hairy; awn 4.5-9.5 mm, geniculate, twisted in lower half. Palea 3.6-4.6 mm. Anthers 2-3 mm. Fl. 5-8. Meadows, mountain slopes, fallow fields, roadsides, 770-2900 m.
N.Africa, W.& C. Europe, Aegean, Caucasia, N.W., W.& C. Iran, Turkestan, Siberia, E. Asia. Introduced in N. America. Euro-Sib. element.