Carex polymorpha

Muhlenberg

Descr. Gram., 239. 1817.

IllustratedEndemicConservation concern
Treatment appears in FNA Volume 23. Treatment on page 428. Mentioned on page 427, 429.

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.
... more about "Carex polymorpha"
light +  and dark-brown +
0.22 cm2.2 mm <br />0.0022 m <br /> (0.28 cm2.8 mm <br />0.0028 m <br />) +
trigonous +
smaller +
1.4mm;2.3mm +
not septate-nodulose +
not +  and beaked +
papillose +  and smooth +
Paul E. Rothrock +  and A. A. Reznicek +
Muhlenberg +
shortened +
tapering +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
0 cm0 mm <br />0 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
m--shaped +
1.5 cm15 mm <br />0.015 m <br /> (?) +  and 7 cm70 mm <br />0.07 m <br /> (?) +
0mm;20mm +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
purple +  and brown +
scabrous to smooth +
round +  and trigonous +
30 cm300 mm <br />0.3 m <br /> (60 cm600 mm <br />0.6 m <br />) +
Conn. +, Del. +, Maine +, Md. +, Mass. +, N.H. +, N.J. +, N.Y. +, Pa. +, R.I. +, Va. +  and W.Va. +
30–1200 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Thin woods with sandy soils +
1.4-2.2 times longer than proximal bract +
6 cm60 mm <br />0.06 m <br /> (19 cm190 mm <br />0.19 m <br />) +
4 cm40 mm <br />0.04 m <br /> (45 cm450 mm <br />0.45 m <br />) +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
prophyllate +, pedunculate +  and pistillate +
1.5 cm15 mm <br />0.015 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
0.75 cm7.5 mm <br />0.0075 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
longer than wide +
0.2 cm2 mm <br />0.002 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
flared +  and bidentate +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
bidentate +  and entire +
with (1-)3-6(-30) bristles and/or scales +
green +  and light-brown +
0.42 cm4.2 mm <br />0.0042 m <br /> (0.68 cm6.8 mm <br />0.0068 m <br />) +
ascending +  and spreading +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Fruiting early–mid summer. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
long-sheathing +  and leaflike +
2 cm20 mm <br />0.02 m <br /> (9 cm90 mm <br />0.09 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
Descr. Gram., +
adventitious +
brown +  and purple +
basal +  and proximal +
2-keeled +
cylindric +
0.6 cm6 mm <br />0.006 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Illustrated +, Endemic +  and Conservation concern +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +
2-3(-4)-fid +
Carex polymorpha +
Carex sect. Paniceae +
species +
plant +  and colonial +
0 cm0 mm <br />0 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +