Flora of North America species comparison

10-70 cm, decumbent, branching and rooting at the lower nodes.

5-150 cm, erect.

compressed, glabrous or pubescent;

ligules 1-2.1 mm;

blades 2-14 cm long, 3-14.2 mm wide.

keeled, glabrous, scabrous, or slightly pubescent;

ligules 1.3-2 mm;

blades 2-35 cm long, 2-7 mm wide, flat, glabrous or scabrous (sparsely pilose).

2-8.2 cm;

fascicles 9-16 mm long, 4-8 mm wide, imbricate, ovoid, densely pubescent;

bristles 15-43;

outer bristles usually present, flattened or terete;

inner bristles 4-8 mm long, 1.2-3 mm wide, fused for at least 1/2 their length, forming a distinct cupule, the distal portions diverging at irregular intervals from the cupule, stramineous or purple.

2-15 cm;

fascicles 4-11 mm long, 2-4.5 mm wide;

bristles 30-60;

outer bristles numerous, less than 1/2 as long as the inner bristles, terete;

inner bristles 2.9-7 mm long, 0.2-1.1 mm wide, flattened, with 1-3 grooves abaxially, fused only at the base, forming a shallow disk, retrorsely scabrous, inner margins long-ciliate.

1(2) per fascicle, 6-8.8 mm.

1-3(4) per fascicle, 3.5-6 mm long, 1.2-1.9 mm wide;

lower glumes 0.5-2.5 mm;

upper glumes 2.5-4.9 mm, 3-5-veined;

lower lemmas 3.2-5.5 mm, 4-5-veined;

upper lemmas 3.4-5.9 mm;

anthers about 1.5 mm.

1-4 mm;

upper glumes 4.9-6.8 mm, 3-7-veined;

lower lemmas 5.5-7.5 mm, 3-7-veined, enclosing the palea;

upper lemmas 6-8.7 mm;

anthers 0.8-2.8 mm.

2.6-4 mm long, 2.2-3.1 mm wide, ovoid-elliptic.

2-3.4 mm long, 1-3.5 mm wide, ovoid.

= 34.

= 34.