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Photo is of parent taxon

spreading arctic sedge, weak arctic sedge

Habit Plants loosely cespitose, usually long-rhizomatous.
Culms

to 30 cm.

Leaf

blades 3–15 cm × 1–1.5 mm.

Spikes

staminate 5–15 × 1–2 mm;

pistillate to 15 × 5 mm.

Perigynia

yellow-green to brown, 2.5–3.3 × 1.2–2 mm;

beak 0.4–0.9 mm.

Achenes

obovoid, 1.7–2 × 1.3–1.4 mm.

Pistillate

scales red-brown, margins hyaline, ovate to ovate-circular, 2–3.5 × 1.4–2.2 mm, apex subobtuse to acuminate, ± covering perigynium body.

Staminate

scales light brown, margins hyaline, oblong-lanceolate, 3–4.5 × 1–1.8 mm, apex acute.

2n

= 36.

Carex supina subsp. spaniocarpa

Phenology Fruiting summer.
Habitat Dry meadows and bluffs, rock outcrops, sandy soil on lakeshores and flood plains
Elevation 10–1300 m (0–4300 ft)
Distribution
from FNA
AK; MN; BC; MB; NT; NU; ON; SK; YT; Greenland; nc Asia; ne Asia (Siberia, Russian Far East)
[BONAP county map]
Source FNA vol. 23, p. 557.
Parent taxa Cyperaceae > Carex > sect. Lamprochlaenae > Carex supina
Synonyms C. spaniocarpa
Name authority (Steudel) Hultén: Acta Univ. Lund., n. s. 38: 365. (1942)
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