Flora of North America species comparison

densely branching.

with swollen nodes, 1 mm diam.

few–20.

erect, terete, 1–3 mm diam., smooth.

0 or 1–2., pink to gray, apex 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, cauline 2–4, green to pink;

auricles 0.5–1.7 mm, apex rounded, membranaceous to cartilaginous;

blade terete, 6–30 cm × 0.5–1.5 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.

terminal racemes of 3–15 heads, 0.6–6 cm, branches ascending to erect;

primary bract erect;

heads 6–30-flowered, spheric, 6–10(–12) 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 light brown, lance-subulate, 2.4–4.1 mm, nearly equal, apex acuminate;

stamens 3 or 6, anthers 1/2 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.

exserted, chestnut brown, 1-locular, lance-subulate, 3.2–5 mm, apex tapering, valves separating at dehiscence, fertile throughout or only proximal to middle.

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

oblong, ellipsoid, or obovoid, 0.4–0.5 mm, not tailed.

= 80.

= 40.