Flora of North America species comparison

thickened.

cespitose, 9–35 cm.

cespitose, straight, 10–30 cm, stiff.

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

basal leaves (with several outer dead ones usually present), to 9 cm × 3 mm, apex callous, sparingly pilose;

cauline leaves to 5 cm × 2 mm.

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);

peduncles, not exceeding 5 mm;

proximal inflorescence bract conspicuous, leaflike, usually conspicuously exceeding inflorescence;

bracts mostly inconspicuous;

bracteoles clear or light to dark brown, occasionally to 1/2 tepal 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.

tepals with broad clear margins and apex (apex acute-acuminate), 1.9–2.5 mm, apex acute-acuminate;

outer whorl ± equaling to exceeding inner whorl;

anthers ± equaling filaments.

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

dark reddish, shining, ovoid, generally shorter than tepals.

translucent brown, ellipsoid, 0.7–1 mm;

caruncle 0.2–0.3 mm.

translucent, brown, ellipsoid, 0.9–1.1 mm;

caruncle barely visible.

= 12.

= 24.