Flora of North America species comparison

1–many, occasionally becoming decumbent.

nearly terete.

0–2.

2–4.

basal and cauline;

auricles rudimentary or absent;

blade flat, 3–13 cm × 0.3–1.1 mm.

basal, 1–4;

sheaths loose;

auricles absent or rounded, 0.5 mm;

blade imperfectly septate, ascending, nearly terete, 2–7 cm × 0.5–1.5 mm.

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

primary bract shorter than inflorescence.

heads, 1–2(–4)-flowered;

primary bracts much 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 brown to blackish, oblong, 2.5–4 mm, apex obtuse;

outer and inner series nearly equal;

stamens 6, filaments 1–1.5 mm, anthers 0.5–0.7 mm;

style deciduous, 0.3–0.4 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.

pale with dark purplish valve margins, pseudo-3-locular, oblate to narrowly ovoid, 4–5.5 × 1.7–2.3 mm, exceeding perianth, apex retuse.

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

yellowish tan, fusiform-ovoid, 0.7–0.9 mm, short tailed.

= 27–37, 58–81, 108–115.

= 120.