Flora of North America species comparison

arching or erect, leafy-based, distally wandlike, terete, multiribbed.

arching, slender, leafy.

ascending to spreading, overtopped by scape;

blades linear, proximally flat, 2.5–5 mm wide, apex subulate, trigonous.

exceeded by culm;

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

terminal, headlike clusters of spikelets, clusters dense, leafy-involucrate;

involucral bracts several, spreading to downcurved, longest 6–13 cm × 5–10 mm, mostly white to midbract, then green, abruptly narrowly linear.

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

distal foliaceous bracts mostly exceeded by inflorescences.

white, ovoid, 5–7 mm;

fertile scales boatshaped, sharply curved-keeled, 5 mm, apex acute.

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

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

perianth absent.

perianth bristles 6, exceeding tubercle tip, antrorsely barbellate.

several per spikelet, 1.5–2 mm;

body yellowish to deep brown, tumidly lenticular, broadly obovoid to orbicular or oblate, 1.5 mm, widest at or toward midbody, margins flowing to tubercle;

surfaces with many fine rows of vertical shallow lattices, their contiguous ends making transverse rows of papillae;

tubercle crescent-based, depressed-triangular, 0.5 mm, apex acute.

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.

= 12.