Flora of North America species comparison

35–100 cm, angles scabrous.

35–150 cm, angles scabrous.

basal sheaths leafless, usually red-brown;

blades amphistomic, 5-8 mm wide, papillose on both surfaces.

basal sheaths leafless, usually red-brown;

blades epistomic, 5–18 mm wide, adaxially papillose.

peduncle of proximal spike not more than 4 cm;

proximal bract longer than inflorescence, 4–8 mm wide.

peduncle of proximal spike to 11 cm;

proximal bract longer than inflorescence, 3–10 mm wide.

erect;

proximal 3–4 spikes pistillate, 2–4 cm × 4–7 mm, base cuneate or attenuate;

terminal 1–3 spikes staminate.

pendent or the terminal usually erect;

proximal 3–6 spikes pistillate, 4.5–11.5 cm × 4–7 mm, base attenuate;

terminal 2–4 spikes staminate.

obovoid, 2–3 × 1.2–2 mm, apex rounded;

beak pale brown, not more than 0.2 mm, thickened.

pale brown, ellipsoid, 1.9–3.5 × 1–1.2 mm, apex acute or obtuse;

beak purple-brown, 0.3–0.4 mm, papery.

scales pale red-brown with narrow pale midvein.

scales red-brown or purple-brown.

= 76.

= 72, 74, 78, 80.