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Carex norvegica Retz., nom. cons.  

No occurrences found

Family: Cyperaceae
closedhead sedge, more...Norway sedge, Steven's sedge
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  • FNA
  • Gleason & Cronquist
  • Resources
Peter W. Ball & A. A. Reznicek in Flora of North America (vol. 23)
Plants densely cespitose. Culms 5-35 cm, distally scabrous. Leaves 2-3 mm wide. Inflorescences: proximal bracts shorter than or exceeding inflorescences; spikes globose or oblong, 4-10 × 3-6 mm; lateral 1-2(-3) spikes pistillate, distant, distinct, erect, short-pedunculate; terminal and distal lateral spikes overlapping, sessile, forming dense terminal cluster; terminal spike gynecandrous. Pistillate scales dark brown or black, margins hyaline, ovate, shorter than or equaling and as broad as perigynia; midvein same color as body, inconspicuous. Perigynia ascending, green becoming dark brown or purple-black, veinless, elliptic or obovate, 2-2.5 × 1.25-1.5 mm, often serrulate distally, apex abruptly beaked, papillose; beak 0.2-0.3 mm, shallowly bidentate, smooth or serrulate. Achenes nearly filling body of perigynia. 2n = 56. Fruiting Jul-Aug. Mossy heath, tundra; 0-1000 m; Greenland; Man., Nfld. and Labr., Nunavut, Ont., Que.; Eurasia. Carex norvegica is an amphi-Atlantic species. Carex norvegica subsp. inserrulata is synonymous with subsp. norvegica in this treatment; however, as some differences can be seen between subsp. inserrulata in Greenland and subsp. norvegica in northern Europe, further study is warranted.

Vascular plants of NE US and adjacent Canada
Stems slender and lax, 2-7 dm, loosely to densely tufted on a compact system of rather slender rhizomes, somewhat aphyllopodic; lvs ±flat, 1.5-3 mm wide; spikes mostly 2-5, approximate, erect or closely ascending, sessile or short-pedunculate, relatively small, the terminal one gynaecandrous, 6-14 mm, the lateral ones pistillate, shorter, seldom over 10 mm; bract subtending the lowest spike sheathless or nearly so, shorter to longer than the infl; pistillate scales purplish-black or brownish-black, prominently white-hyaline-margined, to as long as the perigynia and usually fully as wide; perigynia coppery-yellowish or light green to dark purple, elliptic, commonly rather narrowly so, to ±obovate, 2.1-3 mm, distended and nearly filled by the trigonous achene, empty only just beneath the short (0.3-0.4 mm) generally blackish beak, 2-ribbed, otherwise only inconspicuously or scarcely nerved, minutely cellular-reticulate; 2n=54, 56. Streambanks, seepage areas, and moist meadows; circumboreal, s. in Amer. to Que., Wis., Minn., and Utah. (C. halleri; C. media; C. vahlii)

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

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