ML070720264

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Carex Disperma in Flora of North America
ML070720264
Person / Time
Site: Susquehanna  Talen Energy icon.png
Issue date: 03/07/2007
From:
- No Known Affiliation
To:
Office of Nuclear Reactor Regulation
ALICIA MULLINS 301-415-1224
References
Download: ML070720264 (1)


Text

Carex disperma in Flora of North America @ efloras.org Search All Floras Advanced Search FNA Vol. 23 Page 296, 298 Login l eFloras Home l Help FNA l Family List l FNA Vol. 23 l Cyperaceae l Carex

46. Carex disperma Dewey, Amer. J. Sci. Arts. 8: 266. 1824.

Carex disperme Carex tenella Schkuhr Plants with loose, branching system of slender, pale brown rhizomes. Culms very slender, nodding, 15-60 cm, exceeding leaves, scabrid. Leaves: basal sheaths pale brown abaxially, inner band white-hyaline, truncate at summit; ligules broader than long; blades mid to dark green, flat, 15-30 x 0.75-1.5 mm, scabrid. Inflorescences 1.5-2.5 cm x 3-5 mm; proximal bract 5-20 mm; distal bracts scalelike. Spikes 2-4(-5), proximal separate, distal aggregate, globose, 3-5 x 2-4 mm. Pistillate scales white-hyaline with green center, ovate, narrower and shorter than perigynia, apex acuminate. Perigynia 1-6, pale green, often brown or even purplish in age, plump, 2.25-3 x 1.3-1.5 mm, membranous, shiny. Achenes red-brown, oblong-elliptic, 1.5-1.75 x 1 mm, glossy. 2n = 70.

Fruiting May-Aug. Swamps, bogs, wet meadows, mossy and shady coniferous woods; 0-3500 m; Greenland; Alta., B.C., Man., N.B., Nfld. and Labr., N.W.T., N.S., Ont., P.E.I., Que., Sask., Yukon; Alaska, Calif., Colo., Conn., Idaho, Ind., Maine, Mass., Mich., Minn., Mont., Nev., N.H., N.J., N.Mex., N.Y., N.Dak., Ohio, Oreg., Pa., S.Dak., Utah, Vt., Wash., Wis., Wyo.; Eurasia.

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Other Databases W3TROPICOS IPNI l eFlora Home l People Search l Help l ActKey l Hu Cards l Glossary l http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=2423571623/7/2007 11:04:34 AM