Flora of North America species comparison

thickened.

cespitose, 9–35 cm.

densely to loosely cespitose, 10–40 cm.

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

basal leaves 3.5–12 cm × 2–6 mm;

cauline leaves equaling or exceeding inflorescences.

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 3–16 (each with 8–16 flowers), 1–2 nearly sessile with others on evident peduncles, mostly cylindric;

secondary branches sometimes present, usually straight, erect;

proximal inflorescence bract barely as long as to exceeding inflorescence.

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 pale brown to chestnut brown to blackish with clear margins, 2–4 mm;

outer and inner whorl ± equal, or outer whorl slightly longer (outer whorl pointed, inner whorl pointed or truncate-mucronate);

anthers not more than 2 times filament length;

stigmas 0.8–1.5 mm;

styles not persistent in fruit.

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

pale to brown to black, globose, shorter than to ± equaling tepals.

translucent brown, ellipsoid, 0.7–1 mm;

caruncle 0.2–0.3 mm.

1.1–1.7 mm;

caruncles 0.2–0.6 mm.

= 12.