OregonFlora species comparison

subterete, 10–30 cm × 0.3–0.5 mm.

1.5–3 times as wide as thick, 20–100 cm × 0.35–2 mm; wiry; some culms arching or decumbent and rooting at tips.

ovoid, 3–8 × 2–3 mm;

proximal scale clasping; entire, subproximal scale with flower; floral scales 8–30, 4–5 per mm of rachilla, 2–3 × 1.5 mm;

apex entire; acute, often keeled in distal part of spike.

5–17 × 2.5–5 mm;

spikes on stolons rudimentary and sometimes producing bulbs;

proximal scale empty; amplexicaul, 2–4 mm, subproximal scale with flower; floral scales 20–40, 2–3 per mm of rachilla, 3.5–6 × 2–3 mm;

apex entire, rounded to subacute.

perianth bristles 3–6, often unequal; from rudimentary to 50% of achene length;

anthers 0.9–1.4 mm;

stigmas 3.

perianth bristles, equaling achene or tubercle;

anthers 2–2.4 mm;

stigmas 3.

slightly to greatly compressed-trigonous, rarely thickly lenticular, 0.9–1.2 × 0.65–0.8 mm.

often very variable within one plant, 1.5–2.5 × 1–1.2 mm;

beak to 1 × 0.6 mm.

persistent, not splitting;

apex obtuse, rarely hardened, lacking a tooth.

not splitting;

apex usually reddish.

flat to shallowly pyramidal; lower than wide, 0.1–0.3 × 0.4–0.65 mm.

when present pyramidal; to 0.5 × 0.3 mm.