Flora of North America species comparison

decumbent and rooting at the lower nodes, erect portion (2)5-12(20) cm, often branched, glabrous or hairy on the lower internodes.

45-60 cm, erect, often glandular below the nodes, sometimes viscid.

pilose on the margins, collars, and at the apices, hairs 0.1-0.6 mm;

ligules 0.3-0.6 mm;

blades 0.5-2.5 cm long, 1-2 mm wide, flat to involute, abaxial surfaces glabrous, adaxial surfaces appressed pubescent, hairs about 0.2 mm.

often viscid, sometimes sparsely pilose, hairy at the apices, hairs to 6 mm;

ligules 0.2-0.3 mm;

blades 8-25 cm long, 2-4 mm wide, flat to involute, glabrous, sometimes viscid.

terminal and axillary, 1-3.5 cm long, 0.7-2.5 cm wide, ovate, open to somewhat congested;

primary branches 0.1-0.5 cm, appressed to strongly divergent, glabrous;

pulvini sparsely pilose or glabrous;

pedicels 0.2-1 mm, ciliate.

20-35(42) cm long, 10-22 cm wide, broadly ovate, open, bases included in the uppermost leaf sheaths;

primary branches 5-14 cm, diverging 20-90° from the rachises, capillary, sometimes viscid, naked basally;

pulvini hairy, hairs to 6 mm;

pedicels (1)1.5-12 mm, diverging or appressed.

4-13 mm long, 1-1.5 mm wide, linear-oblong, often arcuate, loosely imbricate, greenish-yellow to purplish, with 12-35 florets;

disarticulation acropetal, paleas persistent.

(2.5)3-4.8 mm long, 0.9-1.4 mm wide, linear-lanceolate, reddish-purple, with 4-9 florets;

disarticulation basipetal, glumes persistent.

linear-lanceolate to lanceolate, hyaline;

lower glumes 0.4-0.7 mm;

upper glumes 0.8-1.2 mm;

lemmas 1.4-2 mm, ovate, strongly 3-veined, veins greenish, apices acuminate;

paleas 0.7-1.2 mm, hyaline, keels scabridulous, apices acute to obtuse;

anthers 2, 0.2-0.3 mm, brownish.

lanceolate, membranous;

lower glumes 0.9-1.2 mm;

upper glumes 1-1.3 mm;

lemmas 1.1-1.4 mm, ovate to lanceolate, membranous, 3-veined, apices acute;

paleas 1-1.4 mm, hyaline, not wider than the lemmas, apices obtuse;

anthers 3, 0.2-0.3 mm, purplish.

0.3-0.5 mm, ellipsoid, somewhat translucent, light brown.

0.5-0.6 mm, ellipsoid, terete in cross section, neither ridged nor grooved, faintly striate, reddish-brown.

= 20.

= unknown.