Flora of North America species comparison

15-50 cm, slender, wiry;

internodes olive green to purplish, densely puberulent or glabrous;

fall phase spreading or decumbent, branching extensively from the lower and midculm nodes, producing numerous congested fascicles of reduced, flat or involute blades and reduced secondary panicles.

slender, usually purplish and puberulent;

fall phase often profusely branched and rebranched.

4-7;

sheaths much shorter than the internodes, densely crisp-puberulent, velvety-puberulent, or glabrous, often ciliate along the margins;

ligules shorter than 0.5 mm;

blades 2-7 cm long (seldom longer), 2.5-8 mm wide (rarely wider), spreading, firm, flat or slightly involute, without prominently raised veins, not longitudinally wrinkled, densely puberulent or glabrous abaxially, glabrous, sparsely puberulent, or pubescent adaxially, bases subcordate, with papillose-based cilia, margins often whitish and scabridulous.

8-14;

sheaths usually purplish and puberulent;

ligules less than 0.5 mm, of hairs;

blades usually purplish and puberulent.

1.5-2.6 mm, obovoid-pyriform, planoconvex in side view, puberulent, pubescent, or glabrous, attenuate basally, apices usually broadly rounded.

1.5-2.6 mm, obovoid-pyriform, planoconvex in side view, bases attenuate.

0.6-1.4 mm, thin, weakly-veined, attached about 0.2 mm below the upper glumes, clasping at the base;

upper glumes as long as or slightly shorter than the lower lemmas;

upper florets 1.4-2 mm, broadly ellipsoid, apices subacute, minutely puberulent.

thin, weakly veined, attached about 0.2 mm below the upper glumes, clasping at the base.

rosettes well-differentiated;

blades 1.5-6 cm, ovate to lanceolate.

rosettes usually well-differentiated.

panicles 2-7 cm long, 2/3 to nearly as wide as long, with relatively few spikelets, exserted;

branches flexuous, spreading or reflexed, scabridulous to densely puberulent.

panicles exserted.

florets subacute.

= 18.