Flora of North America species comparison

14–89(–101) cm × 0.3–1.1 mm wide, smooth or papillose.

erect, slender, 10–15(–30) cm, rough distally.

ligule on distal leaf 0.9–2.2 mm, as long as wide;

blades 0.6–4.2 mm wide, widest blade 2.4–4.2 mm wide.

sheaths pale brown abaxially, persisting, inner band thin, hyaline, sometimes red tinged, truncate or shallowly concave at summit;

ligules shorter than wide;

blades pale green to gray-green, flat or slightly involute, 5–10 cm × 1–2 mm, shorter than culms.

12–56 mm;

proximal internode 6–34 mm;

proximal bracts 6–49 mm, awn 7–46 mm;

spikes (2–)3–5, longest ones 2–5, usually gynecandrous;

proximal spikes with 1–2 staminate and (5–)7–12 pistillate flowers, 5.2–11(–13) × (2.1–)3.7–6.9 mm;

terminal spikes usually with 1–3(–5) staminate and (7–)9–13(–16) pistillate flowers, 6.8–13 × 3.8–8.1 mm.

0.7–1.5 cm × 4–7 mm;

proximal bracts scalelike, occasionally bristlelike, shorter than spikes.

2–3(–4), lateral spikes gynecandrous, closely approximate or the proximal slightly separate, individually distinct, containing 3–8 perigynia, oblong-clavate, 3–6 × 3–5 mm;

terminal spike not clavate.

erect to ascending, green to pale brown, 0–5-veined abaxially, usually veinless adaxially, narrowly ovate, 4–4.9(–5.2) × 1.3–1.5(–1.6) mm, 2.9–3.8 times as long as wide, apex gradually tapering;

beak 1.4–2.1 mm, 0.32–0.4 times as long as perigynia, margins serrulate, apex entire or bidentulate, teeth to 0.2 mm, 0–0.05 times as long as perigynia.

appressed-ascending, green-white proximally, pale brown distally, often brown in age, finely several-veined, elliptic, 2–3 × 1.25–1.5 mm, widest near middle, apex conic with weakly convex, usually entire margin, subcoriaceous;

beak indistinct.

1.8–2.2 × 1.2–1.5 mm wide, 1.3–1.8 times as long as wide.

red-brown, broadly obovate, 1.25–1.5 × 1 mm, dull to slightly glossy.

scales with colorless or stramineous margins, 3–4.5 × 1.6–2.2 mm, body 2.8–4.2 mm, apex acuminate to short-awned, awn to 0.6 mm.

scales red-brown with lighter center and broad white-hyaline margins oblong-ovate, subequal to perigynia, apex obtuse.

scales with colorless or stramineous margins, 3–5.3 × 1.2–1.6 mm, apex acute to acuminate or occasionally short-awned to 0.3 mm.

(1.8–)1.9–2.2 mm.

1.9–2 mm.

= 62, 64.