Flora of North America species comparison

without terminal tubers.

densely branching.

few–20.

erect, terete, 4–6 mm diam., smooth.

1–2, straw-colored, 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 1–2, cauline 1–2;

auricles 1.2–1.5 mm, apex rounded, scarious;

blade straw-colored or green, terete, 20–65 cm × 1.1–3.5 mm, with prominent and conspicuous ringlike bands at position of cross partitions;

distal cauline leaves reduced to 2.5 cm.

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 panicles of 30–250 heads, 8–12 cm, branches spreading;

primary bract erect to ascending;

heads 2–10-flowered, broadly obovoid to hemispheric, 0.3–0.5 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 straw-colored, lance-subulate, apex acuminate;

outer tepals 1.9–2.2 mm;

inner tepals 1.7–2.1 mm;

stamens 3, anthers 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, straw-colored, 1-locular, ovoid, 1.9–2.5 mm, apex acute, valves separating at dehiscence.

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

oblong or ellipsoid, 0.5–0.6 mm, not tailed;

body clear yellow-brown.

= 80.