Flora of North America species comparison

widely creeping, 2–4 mm diam.

terete, 1.5–2.5 mm diam.

first ascending, soon arcuate-stoloniferous and creeping or floating, or growing submersed along bottom, each node with cluster of basal leaves and fibrous roots, eventually each emergent terrestrial node with floriferous culm.

several.

blade absent.

basal;

auricles 0.5–1 mm, apex acutish, membranous or thicker;

blade spreading, flat, 2–10(–15) cm × 1–3 mm.

8–30(–50)-flowered, open, 1.5–4 cm;

primary bract terete, 1–2.5 dm, much longer than inflorescence.

glomerules, (1–)2–10, each with 3–12 flowers, open;

primary bract usually shorter than inflorescence.

pedicellate;

bracteoles broadly ovate;

tepals light brown, ovate-lanceolate, 1.8–2.5 mm, apex acuminate;

inner series shorter, margins scarious, apex acute;

stamens 6, filaments 1–1.3 mm, anthers 0.5–0.7 mm;

style 0.5 mm.

tepals green, margins scarious;

inner series narrowly lanceolate, 5–9 mm, apex usually recurved;

outer series obviously shorter, apex usually erect;

stamens 3, filaments 1.5–3 mm, anthers 0.5–0.8 mm;

style 0.5 mm.

reddish tan to brown, lustrous, 3-locular, widely ellipsoid, 2–3 × 1.8–2.2 mm, exceeding perianth.

tan, 3-locular, narrowly ellipsoid, 3.5–5.5 × 0.8–1.2 mm.

dark amber, obovoid, 0.7–1 mm, not tailed.

brown, ovoid, 0.3–0.4 mm, not tailed.