Flora of North America species comparison

densely cespitose, 5-20 cm.

cespitose, 10–40 cm.

absent.

sheaths brown to straw-colored;

basal leaves to 10 cm × 4 mm;

cauline leaves usually 2, reduced.

sheath throats with long, soft, wavy hairs;

basal leaves 5–15 cm × 3–7 mm, margins with long, soft, wavy hairs, apex callous.

glomerules 1-3, sessile;

proximal inflorescence bract inconspicuous, brown, much shorter to ± equaling inflorescence, apex often clear, dentate;

bracts deep brown, margins dentate;

bracteoles deep brown, margins dentate.

umbellate or sessile glomerules, 5–15 × 5–7 mm;

glomerules 1–6, spheric to nearly cylindric;

branches straight, divergent by as much as 90°, 0.5–5 cm;

proximal inflorescence bract conspicuous, shorter than to much longer than inflorescence;

bracts clear, margins nearly entire to lacerate;

bracteoles clear, margins ciliate, especially in distal half.

tepals deep brown with narrow clear margins and apex, 1.7-2.1 mm;

anthers ± equaling filament length.

tepals dark brown to pale with clear margins, 2–5 mm;

outer whorl often longer than inner whorl;

anthers much exceeding to shorter than filaments.

dark reddish to blackish, shining, spheric, 1.8-2.1 mm, usually exceeding tepals.

greenish to dark brown, spheric, equal to or much shorter than tepals.

translucent, clear brown, broadly elliptic, with few entangled hairs, 1-1.2 mm.

red-brown to brown, cylindric, 1–1.5 mm;

caruncle 0.3–0.8 mm.

= 24.

= 12, 24.