Flora of North America species comparison

thickened.

0.5–1 cm.

cespitose, 9–35 cm.

cespitose, stiffly erect, 3–28 cm.

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

sheaths reddish;

basal leaves (persisting for several seasons,) reddish, exceeding inflorescence to as short as cauline leaves, glabrous;

cauline leaves 2–3, reddish, rarely to 6 cm, often reaching or exceeding inflorescence, 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.

glomerules 1–4, pedunculate;

main branches 1–3(–4), arching in 1 direction, 1–4 cm, terminated by 2–several peduncles each bearing 1–5 flowers;

peduncles 2 mm;

;

proximal inflorescence bract usually inconspicuous, though variable in size and shape;

bracts and bracteoles conspicuous, clear to deep brown, margins lacerate to fimbriate to abundantly ciliate.

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 dark brown with clear apex, 1.6–2.6 mm;

outer whorl longer than inner whorl;

anthers ca. 2 times filament length;

stigmas much exceeding styles.

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

dark brown, ovoid, ± equaling to shorter than tepals.

translucent brown, ellipsoid, 0.7–1 mm;

caruncle 0.2–0.3 mm.

dark brown, (with tuft of fine tangled hairs), ellipsoid, 0.8–1.2 mm.

= 12.

= 36.