Flora of North America species comparison

densely branching.

2–3 mm diam.

few–20.

erect, 2–6 mm diam.

0 or 1–2, straw-colored, apex narrowly acute.

basal, (1–)2–3;

auricles 2–5 mm, apex acute, membranous;

blade flat, 3–12 cm × 0.5–1 mm, margins entire.

basal 1–3, cauline 2–6, straw-colored;

auricles absent;

blade 10–40 cm x (3–)7–12 mm.

5–40-flowered, borne congested or branch internodes ca. as long as tepals, ssomewhat loose, 1–5 cm;

primary bract usually longer than inflorescence.

panicles or racemes of 20–50 heads, 2–14 cm, erect or ascending branches;

primary bract erect;

heads 15–70-flowered, obovoid to globose, 7–11 mm diam.

bracteoles 2;

tepals greenish, lanceolate, 3.3–4.4 mm;

outer and inner series nearly equal;

stamens 6, filaments 0.5–0.9 mm, anthers 0.1–0.2 mm;

style 0.1–0.2 mm.

tepals green to brown or reddish brown, lanceolate, 2.4–3.7 mm, nearly equal, apex acuminate;

stamens 6;

anthers ½1/2 to equal filament length.

tan or light brown, 1-locular to pseudo-3-locular, ellipsoid, (3.3–)3.8–4.7 × (1.1–)1.3–1.7 mm, nearly equal to tepals.

slightly exserted, chestnut to dark brown, 1-locular, ellipsoid, 2.4–3.8 mm, apex acuminate, not beaked.

tan, ellipsoid to lunate, (0.52–)5.5–0.65(–0.7) mm, not tailed.

elliptic to obovate, 0.4–0.6 mm, not tailed.

= 80.

= 40.