Flora of North America species comparison

10-90 cm, sometimes decumbent and rooting at the lower nodes.

20-80 (90) cm, more or less decumbent.

glabrous, smooth;

ligules to 5 mm;

blades 2-13 cm long, 1-6 mm wide.

smooth;

ligules 2-6 mm, scabridulous-pubescent;

blades 5-9 cm long, 3-6 mm wide.

2-10 cm, ovate-oblong to pyramidal, dense but interrupted, pale green to purplish;

pedicels not developed;

stipes 0.1-0.6 mm.

3-15 cm long, 0.5-3 cm wide, usually interrupted or lobed;

pedicels not developed;

stipes 0.2-0.7 mm.

1.5-2 mm, scabrous on the back and keel, apices obtuse or truncate, unawned;

lemmas about 1 mm, erose, unawned;

paleas subequal to the lemmas;

anthers 0.3-0.5 mm.

2-3 mm, subequal, scabrous, larger prickles extending up the keel beyond midlength, not tapering to the apices, apices acute to truncate, unlobed or the lobes to 0.1 mm, awned, awns 1.5-3.2 mm, those of the lower and upper glumes subequal;

lemmas 0.8-1.5 mm, glabrous, smooth and shiny, apices obtuse, not emarginate, awned, awns 1-3.2 mm;

paleas about 3/4 as long as the lemmas;

anthers 0.5-0.7 mm.

= 28, 42.

= 28, 42.