Flora of North America species comparison

arching, leafy, droopingtipped, ± terete, ribbed, slender.

erect to ascending, leafy, slender, angular.

exceeded by culm;

blades linear, proximally flat, 3–6 mm wide, apex tapering, trigonous, subulate.

clusters of spikelets 3–6, progressively wider-spaced proximally, narrow, elongate; leafy bracts slender, mostly exceeding clusters.

of terminal and axillary clusters, 3–5, proximalmost widely spaced, turbinate or lobed, fascicles dense, branches ascending; leafy bracts exceeding all but proximalmost clusters.

redbrown, lanceoloid, 5–7 mm, apex acuminate;

fertile scales narrowly ovate, 4–5 mm, apex acuminate, midrib included or shortexcurrent.

rich redbrown, ovoid, (4–)5–6(–7) mm, apex acuminate;

fertile scales ovate, (3.5–)4–5 mm, apex acuminate, midrib short or longexcurrent.

perianth bristles 6, exceeding tubercle, antrorsely barbellate.

perianth bristles 6, reaching past tubercle, antrorsely barbellate.

(1–)2–3(–4) per spikelet, 3–3.2 mm;

body brown, narrowly oblong-ellipsoid, flattened, 2 × 0.8–1 mm;

surface strongly transversely wavyrugose, vertically finely striate between ridges;

tubercle compressed, narrowly triangular-subulate, 1 mm.

mostly 3–4(–7) per spikelet, 3 mm with pedicellar joint and tubercle;

body pale yellowbrown, obovoidlenticular, 1.4–1.7 × 1.4 × 1.5;

surfaces transversely finely wavyrugulose, intervals vertically rectangularalveolate;

pedicellar joint 0.3–0.6 mm;

tubercle compressed, triangularacuminate, 0.5–0.6 (–1) mm, margin setulose.

leaves exceeded by culm;

blades spreading to ascending, narrowly linear, proximally flat, 2–3.5 mm wide, apex trigonous, tapering.