Flora of North America species comparison

absent.

densely cespitose, 5-20 cm.

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

to 4 cm;

scale leaves present; adventitious roots present.

sheaths brown to straw-colored;

basal leaves to 10 cm × 4 mm;

cauline leaves usually 2, reduced.

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.

glomerules 1-3, sessile;

proximal inflorescence bract inconspicuous, brown, much shorter to ± equaling inflorescence, apex often clear, dentate;

bracts deep brown, margins dentate;

bracteoles deep brown, margins dentate.

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 deep brown with narrow clear margins and apex, 1.7-2.1 mm;

anthers ± equaling filament length.

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

anthers 2 times filament length;

stigmas 2 times style length.

dark reddish to blackish, shining, spheric, 1.8-2.1 mm, usually exceeding tepals.

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

beak a mucro.

translucent, clear brown, broadly elliptic, with few entangled hairs, 1-1.2 mm.

dark brown to black, 1.4 mm;

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

= 24.

= 52 (Japan).