bromus rigidus

Bromus rigidus, the ripgut brome, is a grass native to Eurasia and naturalized in North America. The specific epithet rigidus means rigid or stiff.

Bromus rigidus is an annual grass growing 0.3–1 m (1 ft 0 in–3 ft 3 in) tall. The culms, leaves, and panicle branches are all pubescent or harsh. The erect or ascending panicle has short branches that terminate in four to nine flowered spikelets. The reddish spikelets are 6–10 cm (2.4–3.9 in) long, including the awns measuring 3–4 cm (1.2–1.6 in) long. ...