Flora of North America species comparison

(20–)30–100 cm, 1.5–3.5 mm wide basally, 0.7–1.2 mm wide distally.

10–83 cm × 0.8–1.3 mm, papillose at mid height.

sheaths usually loose, proximal green-and-white-striped and green-and-white-mottled, with conspicous transverse veins on back, fronts white to hyaline, sometimes red dotted and transversely rugose, yellow or brown and thickened at mouth;

ligules 1–4.5 mm, shorter than to as long as wide;

widest leaf blades 3.5–5 mm wide.

ligule of distal leaf (2.1–)2.6–6.8 mm;

blades 1.4–3.8 mm wide, widest blade 2.3–3.8 mm wide.

with 5–10 spikes, (1.5–)2–5 cm × 8–13 mm;

proximal internodes shorter than to as long as proximal spikes;

proximal bracts to 3 cm;

spikes with 5–15 ascending to spreading perigynia.

27–68 mm, proximalmost 2 spikes overalapping or separate;

proximal internode 7.3–28 mm;

proximal bract 11–61 mm;

spikes (4–)5–6(–7), usually gynecandrous, sometimes pistillate or staminate;

proximal spike usually with 1–3 staminate and 11–22 pistillate flowers, longest per plant with 12–22 pistillate flowers, 9.7–18 × 3.7–6.6 mm, longest per plant 12–18 mm;

terminal spike usually with 1–3 staminate and 14–21 pistillate flowers, sessile or on peduncle to 1.8 mm, 9.6–16 × 3.4–6.2 mm.

pale green to pale brown, veinless or weakly 2–5-veined abaxially, 3.4–4.6 × 1.9–2.8 mm, body somewhat spongy, thickened at base, margins serrulate distally;

beak 0.7–1.4 mm, apical teeth 0.3–1 mm.

erect to appressed-erect, green to brown, veinless or weakly 1–3(–4)-veined abaxially, veinless adaxially, narrowly lanceolate in outline, 3.7–5.3 × 1.1–1.3(–1.4) mm, 3.2–3.9(–4.2) times as long as wide, apex gradually tapering;

beak 1.5–2.2 mm, 39–49% of total perigynium, margins denticulate for distal 49–60% of length of perigynium, apex entire or bidentulate, teeth 0–0.2(–0.4) mm, 0–8% of length of perigynium.

circular to elliptic-circular, 1.8–2.1 × 1.6–1.8 mm.

1.6–2.2 × 1.1–1.3 mm, 1.5–1.8 times as long as wide.

scales hyaline or pale brown with green, 1–3-veined center, ovate, 2.2–3.5 × 1.2–1.8 mm, body 2/3 as long to almost length of perigynia, apex acuminate to short-awned.

scales whitish to castaneous, with green midrib, 2.9–4.4 mm, body 2.9–3.8 × 1.4–1.8 mm, apex acuminate to short-awned, awn to 1.1 mm.

1.5–2.5 mm.

1.3–1.8 mm.

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

1.8–2.5 mm.