Difference between revisions of "Carex polymorpha"

Muhlenberg

Descr. Gram., 239. 1817.

Treatment appears in FNA Volume 23. Treatment on page 428. Mentioned on page 427, 429.
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name=Carex polymorpha
 
name=Carex polymorpha
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V23/V23_784.xml
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V23/V23_784.xml
 
|genus=Carex
 
|genus=Carex
 
|section=Carex sect. Paniceae
 
|section=Carex sect. Paniceae

Revision as of 21:11, 16 December 2019

Plants colonial, long-rhizomatous. Culms 30–60 cm, scabrous to smooth distally. Leaves: proximal sheaths fibrillose, bladeless, brown- to reddish purple tinged, 2–4.5 mm diam.; ligules 2–10 mm, longer than wide; largest blades green, flat, 4–45 cm × 2.5–6 mm. Inflorescences 6–19 cm, 1.4–2.2 times longer than proximal bract; proximal bracts 2–9 cm; sheath 0.6–2 cm, blade 1.5–7 cm; proximal spikes pistillate or androgynous; lateral spikes cylindric, 1.5–3.5 cm × 7.5–11 mm; terminal 1–3 spikes, staminate. Pistillate scales purple or brown, apex rounded or obtuse. Perigynia densely arranged, green to light brown, 2-ribbed and finely veined, 4.2–6.8 × 1.5–2.5 mm, with low, broad papillae; beak purple tinged, mouth hyaline, obliquely bidentate, asymmetrically flared, 0.8–1.8(–2.2) mm. Achenes light to dark brown, 2.2–2.8 × 1.4–2.3 mm.


Phenology: Fruiting early–mid summer.
Habitat: Thin woods with sandy soils
Elevation: 30–1200 m

Distribution

V23 784-distribution-map.jpg

Conn., Del., Maine, Md., Mass., N.H., N.J., N.Y., Pa., R.I., Va., W.Va.

Discussion

Of conservation concern.

Carex polymorpha, rare throughout its range, is of conservation concern (L. A. Standley and J. L. Dudley 1991).

Selected References

None.

Lower Taxa

None.