Flora of North America species comparison

strongly purple-red to (3.4–)5.5–9.6 cm high at base, 14–60 cm.

erect, not stiff, 15–90 cm.

sheaths glabrous;

blades green, widest blades (3–)3.5–6.5 mm wide, smooth abaxially.

sheaths pale brown abaxially, inner band thin, hyaline, sometimes slightly red tinged, concave at summit;

ligules slightly longer than wide;

blades pale green to gray-green flat, 10–20(–30) cm × (1.5–)2–4 mm, subequal to shorter than culms, not stiff.

0.55–0.96 of culm height;

peduncles of lateral spikes barely scaberulous or smooth;

peduncles of terminal spike 2.4–49 mm, barely to much exceeding lateral spikes;

proximal bract sheaths tight, abaxially glabrous, sheath front truncate or slightly convex, elongated to 3.1(–4.8) mm beyond apex;

ligules 0.7–3.8(–13.4) mm;

blades uniformly green, distal bract usually much exceeding terminal spike.

2–15 cm × 5–10 mm;

proximal bracts shorter than to exceeding spikes;

distal bracts usually scalelike.

3–6, widely separate or distal 2–3 overlapping;

lateral spikes pistillate, with (2–)5–14 perigynia, (4–)9–24 × (1.6–)2.9–6.4(–6.9) mm, ratio of spike length (in mm) to flower number = 1.5–2.3;

terminal spikes (6–)14–26(–30) × (0.8–)1.3–2.5(–3) mm.

4–8, gynecandrous, proximal ± remote, distal spikes approximate, sometimes flexuous, containing (5–)10–20(–30) perigynia suborbicular to oblong, 3–12 × 3–5 mm;

terminal spike staminate for less than 1/2 of length, often clavate due to more conspicuous staminate part.

distichously imbricate, 57–69-veined, unwrinkled, oblong or elliptic to narrowly oblong or narrowly elliptic, obtusely triangular in cross section, (3.9–)4.2–4.9(–5.1) × (1.4–)1.6–1.8 mm, (2.4–)2.5–3.3 times as long as wide, dull, base very gradually tapered, apex gradually tapered;

beak absent or straight, 0–0.3 mm.

appressed-ascending, gray-green, becoming yellowish brown, obscurely many-veined, elliptic-ovate, 1.8–3 × 1.2–1.7 mm, widest near middle, membranous;

beak abaxial suture inconspicuous, small marginal teeth.

obovoid, 2.8–3.7 × 1.3–1.7 mm, tightly enveloped by perigynia;

stipe straight;

beak straight, (0.3–)0.4–0.7 mm.

pale brown, oblong-obovate, 1.25–1.5 × 1–1.25 mm, dull to slightly glossy.

scales 2.8–4.5 × (1.2–)1.7–2.2 mm, margins whitish or tinged pale red-brown, entire, apex with awn 0.3–2.5 mm.

scales hyaline with green, 3-veined center when young, usually brownish tinged in age, broadly ovate, subequal to, not concealing perigynia, apex obtuse to acutish.

scales 3.3–4.9 × 1.1–1.7 mm.

2.2–3.2 mm.

= 56.