Flora of North America species comparison

widely creeping, sparingly branched, 1.5–2 mm diam., nodes closely set.

short, knotty.

terete, 1 mm diam.

compressed.

several.

blade absent.

basal and cauline;

auricles 0.5–1.5 mm, apex rounded, membranous;

basal blade flat, 20–4.5 dcm × 1.5–5 mm, cauline reduced.

3–10(–12)-flowered, loosely congested, 1–2 cm;

primary bract terete, nearly equaling to much longer than culm.

glomerules, (2–)5–200, each with (1–)2–10(–20) flowers, mostly open, 3–10(–15) cm;

primary bract shorter than inflorescence.

pedicellate;

bracteoles broadly ovate, tepals light brown or green, lanceolate, 2.5–4.2 mm;

inner series loosely subtending capsule at maturity, slightly shorter, margins scarious;

stamens 6, filaments 0.5–0.9 mm, anthers 0.5–0.7 mm;

style 0.2 mm.

tepals dark brownish, usually with green midstripe, outer series ovate-lanceolate, 1.8–3.2 mm, margins broad, clear, awned or not, apex acutish;

inner series ovate to lanceolate, 2–3.5 mm, slightly longer than outer series, apex obtuse to acute, awned or not;

stamens 3, opposite outer tepals, shorter to longer than tepals, filaments 1.1–2.5 mm, anthers 0.3–1.2 mm;

style 0.3 mm.

tan, 3-locular, nearly globose, 2.5–3 × 1.8–2.1 mm, shorter than perianth.

brown and sometimes dark spotted, 3-locular, obovoid to nearly globose, 1.8–2.9 mm, shorter to longer than perianth.

amber, 0.5–0.6 mm, not tailed.

yellow to light brown, fusiform, 0.4–0.7 mm, not tailed.

= 40, 70, 80, 84.

= 38, 40.