Flora of North America species comparison

9-85 cm, not forming corms;

basal internodes often thickened;

internodes smooth.

usually purplish, becoming dark brown.

scabridulous;

ligules 2.5-5 mm;

blades 1.5-5 mm wide, abaxial surfaces glabrous, scabridulous, adaxial surfaces sometimes strigose, sometimes glabrous or scabridulous.

3-30 cm;

branches 0.5-10 cm, appressed, with 1-5 spikelets;

pedicels sharply bent below the spikelets;

disarticulation below the glumes.

6-23 mm long, 5-13 mm wide, broadly V-shaped when mature, with 2-4 bisexual florets;

rachilla internodes 1.8-2.1 mm.

3-4 mm wide;

paleas about 1/2 the length of the lemmas;

anthers 1-2 mm.

6-16 mm long, 3.5-5 mm wide, 4-7-veined;

upper glumes 6-18 mm long, 3-5 mm wide, 5-9-veined;

lemmas 6-16 mm, glabrous, scabridulous, 5-9-veined, veins inconspicuous, apices acute, unawned;

paleas 1/2 - 3/4 the length of the lemmas;

anthers 1-3 mm;

rudiments 2-7 mm, resembling the lower florets, acute to acuminate.

4-5 mm.

= 18.