OregonFlora species comparison

often ascending or spreading, 4-angled or terete 1–7 cm × 0.2–0.3 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, 1.5–4 × 0.8–2 mm; floral scales 4–15, 8 per mm of rachilla, 1–1.5 × 0.5–0.7 mm;

midrib obscure to somewhat keeled;

apex narrowly acute to acuminate, slightly recurved.

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 absent;

anthers 0.3–0.5 mm;

stigmas 3.

perianth bristles, equaling achene or tubercle;

anthers 2–2.4 mm;

stigmas 3.

with about 6–10 rather prominent angles and longitudinal ridges, broadly ovoid; less than 2 times longer than wide; (0.55)0.65–0.75 × 0.3–0.4 mm; fine horizontal ridges distinct, 20–30.

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

beak to 1 × 0.6 mm.

often splitting;

apex acute.

not splitting;

apex usually reddish.

mostly appressed; pyramidal, often depressed, 0.1–0.2 × 0.1–0.25 mm.

when present pyramidal; to 0.5 × 0.3 mm.