Flora of North America species comparison

short.

thickened.

cespitose, 15–30(–35) cm.

cespitose, 9–35 cm.

sheath throat acutely angled, pilose;

basal leaf blade 5–10 cm × 3–8 mm, apex short acuminate, mostly glabrous;

cauline leaves (1–)2–4, 3–5 cm × 2–4 mm.

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

anthelate, few flowered;

main branches generally 2–4, spreading less than 90°, lax, usually arching;

proximal inflorescence bract 1 cm or less;

bracts and bracteoles brown;

margins with long curly cilia.

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.

solitary on short pedicels;

tepals dark purplish brown (margins finely lacerate toward apex), 2–2.5 mm, margins finely lacerate toward apex, apex acute, not reflexed;

anthers ± equaling filament length;

stigmas 2 times style length.

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.

dark brown, less than 2.5 mm, slightly longer than tepals;

beak absent.

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

dark reddish brown, cylindric, 1.2–1.6 mm;

caruncle essentially absent.

translucent brown, ellipsoid, 0.7–1 mm;

caruncle 0.2–0.3 mm.

= 24.

= 12.