Flora of North America species comparison

20–90 cm, 1.7–2.2 mm wide basally, 0.7–1.1 mm wide distally.

to 70 cm × 1.5 mm, scabrous.

sheaths tight, green, sometimes white spotted, fronts hyaline, sometimes transversely rugose, mouth yellowish and thickened;

ligules to 3 mm, usually wider than long;

widest leaf blades 2–4 mm wide, papillose adaxially.

sheaths usually all with blades, proximal 2–3 to 10 cm with reduced blades, green, fronts of proximal sheaths herbaceous, prominently veined, not splitting, apex truncate, fronts of distal sheaths hyaline, indistinctly veined with linear veins, smooth, apex colorless, thickened concave, entire;

ligules obtuse, 1.5 mm, free limb to 0.5 mm;

blades not clustered at base, not epistomic, to 60 cm × 5 mm.

with 3–10 spikes, 1.5–4 cm × 8–12 mm;

proximal internodes equaling or shorter than proximal spikes;

proximal bracts less than 2 cm;

spikes with 8–20 ascending or spreading perigynia.

very condensed, ovoid, with 5–10 individually indistinguishable branches, 2.5 × 1.5 cm;

proximal internode not visible, not more than 3 mm;

proximal bracts scalelike, inconspicuous.

pale green to yellow-brown, 9–15-veined abaxially, margins serrulate distally;

beak 0.2–1.2mm, apical teeth 0.2–0.5 mm.

pale brown, 15-veined abaxially, 7–12-veined adaxially, to 4.5 × 2 mm, base distended only slightly proximally, cordate;

stipe to 0.2 mm;

beak to 2 mm, smooth or subserrulate, apical teeth to 0.3 mm.

suborbiculate, 1.9–2.2 × 1.9–2.1 mm.

ovate, to 2 × 1.5 mm;

stalk to 0.2 mm;

persistent style base cylindric.

scales hyaline with green, 3-veined center, ovate to ovate-circular, body narrower than and 2/3 to length of perigynium, apex acute or with awn 0.5–1.5(–2) mm.

1.5–2.3 mm.

hyaline, brown, subequal to perigynia, acute.