Flora of North America species comparison

thickened.

absent.

cespitose, 9–35 cm.

loosely cespitose, 10–30 cm × 0.5–3.5 mm.

to 4 cm;

scale leaves present; adventitious roots present.

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

sheaths reddish, throats pilose;

blade sparsely pubescent;

basal leaves 6–10 cm × 2–5 mm;

cauline leaves 2–3, to 4(–6) cm × 1–2.5 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.

simple or rarely branching;

proximal inflorescence bract to 1/2 length of inflorescence;

bracts brown, apex truncate, glabrous;

bracteoles ovate, 1/2 length of tepals;

pedicels spreading, 1–4 cm.

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 brown, 1.6–2.5 mm, margins entire, clear;

anthers 2 times filament length;

stigmas 2 times style length.

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

straw-colored, sometimes reddish, equal to or exceeding tepals;

beak a mucro.

translucent brown, ellipsoid, 0.7–1 mm;

caruncle 0.2–0.3 mm.

dark brown to black, 1.4 mm;

caruncle erect to slightly curved, 2/3 length of seed body.

= 12.

= 52 (Japan).