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long-rhizome sedge

Habit Plants rhizomatous; culms 13–50 cm tall, standing taller than the leaves; plant bases brown or reddish.
Leaves

0.7–4.5 mm wide, green, not papillose on the lower surface.

Inflorescences

basal spikes none or rarely present; female; on long; slender stalk, bracts of lowest lateral spikes bristle-like or leaf-like; shorter than the inflorescence;

lateral spikes 1–4; female; each about 1.5 mm long or shorter, with 5–15 perigynia; terminal spike male, 1–2.5 cm long; held above the female spikes on peduncles (0.8)2.5–20 mm long.

Perigynia

obovoid, 2.8–4.6 × 1.5–2.2 mm, pale green to pale brown, pubescent; veinless except for 2 marginal ribs, bases succulent, withering when dry;

beaks 0.4–1.3 mm long;

teeth 0.1–0.7 mm long;

stigmas 3.

Achenes

trigonous.

Female scales

subequal to the perigynia; reddish brown, brown, or purplish with narrow white margins.

Carex inops ssp. inops

Distribution
[BONAP county map]
Discussion

Dry, open, conifer forests, meadows, low elevation prairies and Quercus garryana savannas. 100–2300 m. Casc, ECas, Est, WV. CA, WA; north to British Columbia. Native.

Carex inops ssp. inops is a common, rhizomatous, upland species with hairy perigynia in short female spikes. Carex rossii and C. deflexa have similar perigynia but are more or less cespitose and have basal female spikes hidden among the leaf bases and longer inflorescence bracts. Tolerant of trampling, C. inops ssp. inops is useful for restoration.

Source Flora of Oregon, volume 1, page 206
Barbara Wilson, Richard Brainerd, Nick Otting
Synonyms Carex pensylvanica, Carex pensylvanica var. vespertina
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