Avena fatua

Deli yulaf

Annual. Stems 45-80 cm, erect to geniculately ascending, glabrous. Leaf sheaths pilose to glabrous; ligule 4-6 mm, obtuse; blades 4.3-26 cm x 4-10 mm, linear, acute, scabridulous to glabrous. Panicle 15-40 x 4-12 cm, equilateral; branches patent. Spikelets 22-27 mm, with 2-3 florets. Rachilla disarticulating above glumes and between florets. Glumes subequal, lanceolate, acute, 7-9-veined; lower 22-25 mm; upper 24-27 mm. Lemma 16-20 mm, 7-veined, lanceolate, bidenticulate to almost bifid, dorsally awned, hairy in lower half; awn 20-35 mm, geniculate, twisted below. Palea 13-16 mm, ciliate on keels. Fl. 6-8. Cultivated fields, shingle beaches, tea plantations, s.l.-1510m.

1-Lemmas hairy especially in lower half var. fatua

1-Lemmas completely glabrous var. glabrata

Europe, Mediterranean area, S.W.Asia and eastwards to E. Asia. Introduced in N. America. Euro-Sib. element.