Flora of North America species comparison

20–80 cm, pilose.

31–115 cm × 0.9–2 mm, smooth, serrulate, or scabriduous at mid height.

sheaths pilose;

ligules longer than wide;

blades 2–3 mm wide, pilose abaxially.

ligule of distal leaf (2–)3.5–7.1 mm, 2–3.9 times as long as wide;

blades 1.8–5.9 mm wide, widest blade 2.3–5.9 mm wide.

lateral spikes approximate or proximal distant, 5–20 × 4.5–7 mm;

terminal spike staminate, 5–30 × 1–2.5 mm.

(33–)40–89(–103) mm;

proximal internode 6–32 mm;

proximal bracts 14–43 mm, awn 10–39 mm;

spikes 5–9, usually gynecandrous;

proximal spikes usually with 1–4 staminate and (14–)18–31(–40) pistillate flowers, 12–22(–25) × 3.9–6.5 mm;

terminal spikes usually with 1–5 staminate and 14–28 pistillate flowers, 9.6–16 × 3.4–6.2 mm.

ascending or somewhat spreading, weakly 14–20-veined, elliptic-oblong, 2.3–3 × 1.1–1.5 mm, glabrous;

beak absent.

erect to appressed-erect, green to brown, prominently to weakly 3–7-veined abaxially, prominently to weakly 0–3(–6)-veined adaxially, narrowly lanceolate, 3.4–5.2 × 1.1–1.4 mm, 2.9–4 times as long as wide, apex abruptly contracted to gradually tapering;

beak 1.5–2.5 mm, 0.4–0.53 times as long as perigynia, margins serrulate, apex bidentulate, teeth (0.2–)0.3–1 mm, (0.06–)0.09–0.2 times as long as perigynia.

1.8–2 × 1–1.2 mm.

1.5–2.1 × 0.9–1.3 mm, 1.3–1.8 times as long as wide.

scales ovate, 2.2–3.2 × 1.1–1.5 mm, 2 times as long as wide, apex of proximal cuspidate, apex of distal acute or acuminate, as long as perigynia.

scales with whitish to castaneous margins, (2.2–)2.5–4.1 × 1.4–2 mm, body 2.2–2.9(–3.1) mm, apex acuminate to short-awned to 1.5 mm.

scales oblong-obovate, 2.7–4.2 mm, apex acute or mucronate.

scales with whitish to castaneous margins, 3.1–4.3 × 1–1.5 mm, apex acute to short-awned.

1.4–2.8 mm.

1.3–1.8 mm.

1.8–2.5 mm.

= 70.