Bromus commutatus hairy chess Poaceae BRCO*; Bx, pb; R;

Bromus commutatus.Regina O. Hughes.New England Wild Flower Society.gobotany.newenglandwild.org

Bromus commutatus.Regina O. Hughes. Reed, C.F. 1970. Selected weeds of the United States. USDA Agric. Res. Ser. Agric. Handbook.New England Wild Flower Society.gobotany.newenglandwild.org (Accessed 4/2014).

Bromus commutatus is an annual C3 grass (Waller and Lewis 1979), 30 cm to 1.2 m tall; lower sheaths finely hairy; ligules 0.1-0.2 cm. 

Leaves alternate, blade 0.1-0.7 cm wide, flat, finely hairy. 

Flower spikelets 1-3 per branch, 4-10 flowered, 1-1.8 cm; glumes finely hairy or minutely bristly, slightly unequal, about 0.6 cm long; lemma 0.7-1 cm long, veins faint, apical teeth to 0.2 cm, awns 0.5-1.2 cm, more-or-less straight; palea much shorter than lemma; inflorescence 4-12 cm, open, broad, branches stiff, (not drooping), mostly longer than spikelets; blooming and fruiting June-early Aug. 

Wetland status: NL. 

Frequency in NYC: Very infrequent. 

Origin: Europe. 

Habitat: Disturbed sites, roadsides.