Flora of North America species comparison

10-150 cm, slender, wiry, erect at first, ultimately decumbent, sprawling, glabrous, often with purple dots and streaks, branching extensively at the base, rooting at the lower nodes.

2-8 cm, erect-spreading;

nodes 1-2, hispid;

internodes pilose, hairs papillose-based.

often shorter than the internodes, loose, glabrous, margins short-ciliate;

ligules 0.2-0.5 mm, membranous, erose, ciliate;

blades 5-20 cm long, 3-10 mm wide, thin, flat, glabrous on both surfaces, margins scabridulous, apices long-acuminate.

rounded, much longer than the internodes, with prominent veins, hispid, hairs papillose-based;

ligules 0.2-0.4 mm, membranous, ciliate;

blades 1-4 cm long, 1-3 mm wide, flat or involute apically, glabrous basally, margins ciliate, cilia papillose-based.

5-30 cm, nearly as wide as long;

branches few, capillary, with a few spikelets distally;

pedicels 0.5-10 mm.

congested, partially included in the sheaths, less than 1.5 times longer than wide;

branches ascending, narrow;

primary branches appressed to the main axes, secondary branches and pedicels attached to the distal 2/3;

pedicels appressed, 1-2 mm.

1.7-2.2 mm long, about 1 mm wide, ellipsoid or obovoid, glabrous, faintly veined, subacute or obtuse at the apices.

2-2.2 mm long, 1-1.3 mm wide, plump-ellipsoid, glabrous.

0.3-0.8 mm, reduced, acute;

upper glumes and lower lemmas subequal or the glumes shorter, distinctly verrucose, with hemispheric warts;

upper florets 1.6-2 mm long, about 1 mm wide, grayish-brown, dull, minutely papillose, acute.

1.2-1.3 mm, acute to attenuate;

upper glumes and lower lemmas 2-2.2 mm, 7-9-veined, apices purplish, acute;

lower florets sterile;

lower paleas 0.2-0.4 mm;

upper florets 1.4-1.8 mm long, about 1 mm wide, broadly ovoid.

= 36.