Flora of North America species comparison

distichous, shorter or longer than culms;

sheaths keeled, entire or distally ciliate;

ligule of short hairs complete;

blades narrowly linear, 1–3 mm wide, flat, margin scabrid-ciliate.

anthelae compound, mostly diffuse, mostly turbinate, as broad as long, ascending-branching;

scapes filiform to linear, distally variously compressed, sometimes alate, 0.5–1.5(–2) mm wide, edges scabrid;

primary involucral bract usually 1, blade exceeding or exceeded by anthela.

red-brown or brown, mostly narrowly lanceoloid to narrowly ellipsoid, 3–7 mm;

fertile scales lanceolate, keeled, 1.5–2 mm, narrowly acute, glabrous, midrib excurrent as mucro.

stamens (1–)2;

styles 3-fid, slender, with 3angled base, glabrous.

pale brown, trigonous-obovoid, 0.5–0.7 mm, apiculate and 3-ribbed, smooth to variably warty.

= 10.