Clustered Sedge

Plants densely cespitose, in small clumps; rhizomes short. Culms often arching, weak, 10–40(–60) cm. Leaves: sheaths pale to mid brown abaxially, inner band thin and hyaline, concave at summit; ligules as wide as long, 2–8 mm; blades usually gray-green, flat to channeled, 5–15 cm × 1–2 mm, usually shorter than culms. Inflorescences erect, 1–2 cm × 5–12 mm; proximal bracts usually scalelike, shorter than spikes. Spikes 2–4, closely approximate, individually distinct, proximal lateral spikes pistillate, containing 5–10(–15) perigynia, oblong-linear; terminal spike gynecandrous, containing 10(–20) perigynia, clavate. Pistillate scales pale to red-brown with yellow-brown center and white-hyaline margins, oblong-ovate, subequal to perigynia, apex obtuse. Perigynia ascending, light to pale brown, often gray-brown at maturity, lightly or obscurely several-veined, from broadly elliptic-obovate to lanceolate, 1.5–3.5 × 1.–1.5 mm, widest near middle, subcoriaceous; beak short, entire. Achenes mid brown to red-brown, elliptic, 1.5 × 1–1.25 mm, dull to slightly glossy. 2n = 66.

Carex glareosa W'ahl. Sv. Vet.-Akad. Xva Handl
24: 146. 1803.
Neskiza glareosa Raf. Good Book 27 wahl I
in small clumps, the rootstocks slender, elongate, black, fibrillose, the culms very slender, 1-2 5 dm. high, sharply triangular, much exceeding the leaves, smooth i itrongly black fibrillose .it base, and clothed with the dried up leaves of the previous year, the lower bladeli . leaves with well-developed bis fertile culm, clustered on the lower fourth, the blades flat, <>r more or It s< analiculate, usually cm. long, i.25-2.i mm. wide, li iiiirh. roughened toward thi
attenuate apex; iterile-culm leaves longer, tin heaths tight, very thin, hyaline ventrally, short-prolonged ;it mouth beyond base of blade and continuous with Hgule; i mV . ! oi
ipproximate, the head 12-18 mm lonj the b i tnio il
linear, 7 12 mm. long, 2 mm wide, with a long clavatc base containing the staminate H and with 4 20 strongly appi oia, the lower piki pi tillate, oblong-linear, I mm
long, 2 5 mm. wide, containing short-cuspidate; scales oblong-ovate, obtuse, thin, chestnut-brown with yellowish-brown 3nerved center and shining white-hyaline margins, the midvein sharply keeled, not extending to apex, wider than but exceeded by the mature perigynia; perigynia plano-convex, lanceolate, 3.5 mm. long, scarcely 1 mm. wide, thick, very membranaceous, light-brownish above, glaucous, white or yellowish below, densely white-punctate, finely many-nerved on both sides, stipitate, spongiose and round-tapering at base, long-tapering at apex into a very minute beak, smooth, slightly obliquely cleft dorsally, tawny-tinged, with entire tip; achenes lenticular, short-stipitate, truncately short-apiculate, narrowly oblong, 2 mm. long, 0.5 mm. wide, nearly filling perigynia; style slender, jointed with achene, at length deciduous; stigmas two, slender, yellowish-brown, short.
Type locality: "Hab. in littoribus maritimis glareosis Norvegiae septentrionalis & ad Sinum Bottnicum."
Distribution: Brackish marshes, Labrador and Newfoundland to Quebec; Alaska; also in northern Europe. (Specimens examined from Quebec, Newfoundland (Quirpon Harbor), Labrador, Alaska.)

Carex glareosa is a species of flowering plant belonging to the family Cyperaceae.

Its native range is Northern Europe to Sakhalin, Alaska to Canada.