Flora of North America species comparison

erect to excurved, lax, filiform, leafy, ± terete.

arching, slender, leafy.

exceeded by culm, ascending;

blades filiform, ± terete, margins strongly involute, apex trigonous, sulcate, tapering.

exceeded by culm;

blades elongate linear, proximally flat, 2–3 mm wide, apex trigonous, subulate.

spikelet clusters mostly 2–3, sparse to dense, oblong to broadly or narrowly turbinate; leafy bracts setaceous, exceeding clusters.

terminal and lateral, clusters 2–3, loosely turbinate, clusters, capillary pedunculate;

distal foliaceous bracts mostly exceeded by inflorescences.

pale redbrown, lanceoloid, 3–3.5 mm, apex acute;

fertile scales mostly elliptic, 2–2.5 mm, apex acute, sometimes apiculate.

few per cluster, brown, broadly ovoid, 4 mm, apex acuminate;

fertile scales oblongovate, 3 mm, midrib forming small awn.

bristles mere nubs or 1–2, to 0.3 mm.

perianth bristles 6, exceeding tubercle tip, antrorsely barbellate.

mostly 2 per spikelet, 1.5–1.6 mm;

body redbrown with pale center, lenticular, broadly obovoid to orbicular, margins pale, narrow, flowing to tubercle;

surfaces smoothish, or faintly cancellate;

tubercle flattened, triangularsubulate, 0.3–0.5 mm.

mostly 2 per spikelet, 3 mm;

body pale yellowbrown, pyriform-obovoid, lenticular, 2 × 1.4 mm;

surfaces transversely wavyrugulose, vertically striatealveolate between ridges;

tubercle subulatetriangular, 1 mm.