Flora of North America species comparison

2–4 mm diam., not swollen.

short, nearly erect, branching.

erect, terete, 1–3 mm diam., smooth.

1(–2).

0–1, straw-colored or maroon, apex acute.

2–4.

basal 0–2, cauline 1–2(–5);

auricles 0.5–1.2 mm, apex rounded, scarious;

blade green to straw-colored, terete, 1.5–12 cm × 0.5–1.1 mm.

basal, 3–6;

auricles 0.2–0.4 mm, membranous to scarious;

blade arcuate, spreading, grayish green, channeled, 7–30 cm × 1–2 mm, nearly leathery, margins entire.

terminal panicles of 5–25 heads, 3–11 cm, branches erect to ascending;

primary bract erect;

heads 2–10-flowered, obpyramidal, usually with some flowers short- pedicellateled, 2–6 mm in diam.

terminal, 7–40-flowered, somewhat loose, 3–10 × 1–2 cm;

primary bract usually shorter than inflorescence.

tepals greenish to straw-colored, lanceolate to oblong;

outer tepals 1.8–3 mm, apex obtuse, mucronate;

inner tepals 1.6–2.7 mm, apex obtuse;

stamens 6, anthers 1/2 filament length.

pedicels 0.5–2 mm;

bracteoles 2;

tepals brown to blackish, 4–5.5 mm;

outer and inner series nearly equal, apex obtuse to nearly acute;

stamens 6, filaments 0.5 mm, anthers 1.5–2 mm;

style 0.2 mm.

equaling perianth to usually exserted, chestnut brown to straw-colored, imperfectly 3-locular, oblong to oblong-ovoid, 2.3–3.5 mm, apex obtuse, valves separating at dehiscence.

brownish, 3-locular, ovoid to ellipsoid, 4–5 × 2.3–3 mm, nearly equal to perianth.

oblong to ovoid, 0.5–0.7 mm, not tailed.

brownish, ellipsoid, 0.6–0.9 mm, not tailed.

= 40.

= 42.