Flora of North America species comparison

thickened.

short, stocky.

cespitose, 9–35 cm.

cespitose, 8–40 cm ×1 mm, base thickened, glabrous.

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

basal leaves to 13 cm;

cauline leaves 1–3, mostly less than 5 cm × 5–10 mm, apex involute, 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.

compact, irregular in shape;

glomerules 6–10, sessile;

branches few or none;

proximal inflorescence bract conspicuous, leaflike, lanceolate, equal to or exceeding inflorescences;

bracteoles clear, 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 shining brown, with thin clear margins, 1.5–2 mm;

outer and inner whorls nearly equal, (outer whorl slightly keeled);

anthers longer than filaments;

stigmas much longer than styles.

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

deep purplish brown at maturity, globose (apex rounded), ± equaling tepals, apex rounded.

translucent brown, ellipsoid, 0.7–1 mm;

caruncle 0.2–0.3 mm.

brown, cylindric, 1.3 mm;

caruncle absent.

= 12.