Flora of North America species comparison

thickened.

cespitose, 9–35 cm.

densely cespitose, 5-20 cm.

basal leaves 6–11.5 cm × 1.5–4 mm, apex not callous, sparingly ciliate.

sheaths brown to straw-colored;

basal leaves to 10 cm × 4 mm;

cauline leaves usually 2, reduced.

umbellate-paniculate;

glomerules 4–30 (each with 9–24 flowers), central glomerules sessile or nearly sessile, cylindric, 6–10 × 4 mm;

branches straight, erect, to 3 cm;

proximal inflorescence bract conspicuous, leaflike, equal to much longer than inflorescence;

bracts clear, sometimes variegated with purple;

bracteole margins dentate to lacerate.

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.

tepals clear to straw-colored throughout or centers brown with clear margins and apex, 1.5–2.6 mm;

outer whorl exceeding inner whorl, (outer whorl apex awned);

anthers equaling to 1.5 times filament length.

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

anthers ± equaling filament length.

light or dark reddish, shining, spheric, usually equaling inner tepal whorl.

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

translucent brown, ellipsoid, 0.7–1 mm;

caruncle 0.2–0.3 mm.

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

= 12.

= 24.