Flora of North America species comparison

thickened.

cespitose, 9–35 cm.

densely cespitose, stiffly erect, reddish brown, 3–26 cm.

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

basal leaves reddish, 2.5–7 cm × 2–5 mm, firm, apex callous, glabrous.

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.

pyramidal, 5–10 mm wide;

glomerules 1–5, sessile, sometimes with 1–2 smaller glomerules on short peduncles;

proximal inflorescence bract conspicuous, reddish, usually exceeding inflorescence, generally stiff;

bracteoles clear.

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 very dark with clear margins, 2–3 mm;

outer whorl slightly exceeding inner whorl;

anthers ± equaling filaments.

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

dark brown to black in distal portion, much shorter than tepals; (beak 0.3 mm).

translucent brown, ellipsoid, 0.7–1 mm;

caruncle 0.2–0.3 mm.

dark brown, oval, 0.8 mm;

caruncle about 0.2 mm.

= 12.

= 20, 22.