Flora of North America species comparison

short.

1–many, occasionally becoming decumbent.

terete, 1.5–2.5 mm diam.

0–2.

several, reddish brown, often apiculate.

basal and cauline;

auricles rudimentary or absent;

blade flat, 3–13 cm × 0.3–1.1 mm.

basal, 1–2;

auricles essentially absent;

blade terete, 10–40 dcm, shorter than culm.

loose and diffuse or less often compact, usually at least ½1/2 total height of plant;

primary bract shorter than inflorescence.

glomerules 3–12, each with (1–)2–5 flowers, open, branches unequal, 3–12 cm, primary bract terete or slightly compressed, shorter to longer than inflorescence.

bracteoles 2;

tepals greenish, lanceolate, 3.8–7(–8.5) mm;

inner series slightly shorter, apex sometimes obtuse;

stamens 3–6, filaments (0.7–)1–1.8 mm, anthers 0.3–0.8 mm;

style 0.1–0.2 mm.

tepals straw-colored to pale green, ovate-lanceolate, 4–5 mm, apex acuminate or setaceous;

inner series elliptic, nearly equal, margins wide, scarious, apiculate;

stamens 6, filaments 1 mm, anthers 1.5–2 mm;

style 1 mm.

tan to reddish brown, 3-locular, ellipsoid to narrowly so, slightly truncate, 2.7–4 × 1–1.5 mm, sometimes exceeding inner tepals but usually not outer series.

tan to light reddish brown, 3-locular, ellipsoid, 3.7–4.5 ×1.6–2 mm, mostly shorter than or nearly equal to perianth.

yellowish, widely ellipsoid to ovoid, 0.26–0.49, not tailed.

dark amber, obovoid, body 0.7–1 mm, tails 0.1–0.5 mm.

= 27–37, 58–81, 108–115.