ML070720285
| ML070720285 | |
| Person / Time | |
|---|---|
| Site: | Susquehanna  |
| Issue date: | 03/07/2007 |
| From: | - No Known Affiliation |
| To: | Office of Nuclear Reactor Regulation |
| ALICIA MULLINS 301-415-1224 | |
| References | |
| Download: ML070720285 (1) | |
Text
Carex polymorpha in Flora of North America @ efloras.org All Floras Advanced Search FNA Vol. 23 Page 427, 428, 429 Login l eFloras Home l Help FNA l Family List l FNA Vol. 23 l Cyperaceae l Carex 251. Carex polymorpha Muhlenberg, Descr. Gram. 239. 1817.
Plants colonial, long-rhizomatous. Culms 30â60 cm, scabrous to smooth distally. Leaves: proximal sheaths fibrillose, bladeless, brown-to reddish purple tinged, 2â4.5 mm diam.; ligules 2â10 mm, longer than wide; largest blades green, flat, 4â45 cm à 2.5â6 mm. Inflorescences 6â19 cm, 1.4â2.2 times longer than proximal bract; proximal bracts 2â9 cm; sheath 0.6â2 cm, blade 1.5â7 cm; proximal spikes pistillate or androgynous; lateral spikes cylindric, 1.5â3.5 cm à 7.5â11 mm; terminal 1â3 spikes, staminate. Pistillate scales purple or brown, apex rounded or obtuse. Perigynia densely arranged, green to light brown, 2-ribbed and finely veined, 4.2â6.8 à 1.5â2.5 mm, with low, broad papillae; beak purple tinged, mouth hyaline, obliquely bidentate, asymmetrically flared, 0.8â1.8(â2.2) mm. Achenes light to dark brown, 2.2â2.8 à 1.4â2.3 mm.
Fruiting earlyâmid summer. Thin woods with sandy soils; of conservation concern; 30â1200 m; Conn., Del., Maine, Md., Mass., N.H., N.J., N.Y., Pa., R.I., Va., W.Va.
Carex polymorpha, rare throughout its range, is of conservation concern (L. A. Standley and J. L. Dudley 1991).
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