Avena L.
Lemmas with red or brown or white hairs near the base
Terminal teeth of the lemmas acute, c. 1 mm long. Spikelets mostly 3-flowered. Hairs on the lemmas brown or white
Rhachilla readily disarticulating between all the florets at maturity. Glumes c. 25 mm long. Lemmas 2 cm long; awns 3–4 cm long, bent near but below the middle. Rhachilla and lower part of the lemmas usually with brown or white hairs. Annual up to 70 cm high. Widespread. Weed of pastures and cultivation. Fl. mainly spring. Introd. from Europe. Wild Oat Avena fatua
Rhachilla continuous and tough between the florets which do not separate at maturity