Carex alata

Torrey

Ann. Lyceum Nat. Hist. New York 3: 396. 1836.

IllustratedEndemic
Treatment appears in FNA Volume 23. Treatment on page 366. Mentioned on page 335, 362, 364, 367.

Plants densely cespitose. Culms 30–140 cm. Leaves: sheaths adaxially conspicuously green-veined nearly to collar, narrow hyaline band or sharp Y-shaped region at collar, adaxially firm, sometimes papillose, summits U-shaped; distal ligules 2.8–8 mm; blades 3–7 per fertile culm, 11–50 cm × 2.5–6 mm. Inflorescences dense or open, pale green or brown, 2–6.5 cm × 7–20 mm; proximal internode 3–13 mm; 2d internode 4–10 mm; proximal bracts scalelike with bristle tips shorter than inflorescences. Spikes 3–11, distant, distinct, ellipsoid to ovoid, 6–20 × 4–9 mm, base rounded or short-acute, apex broadly acute to obtuse. Pistillate scales white-hyaline or tan, with green midstripe extending to tip, lanceolate, 2.8–3.5 (–3.8) mm, shorter or longer and much narrower than perigynia, apex firm, acuminate or awned to 0.8 mm. Perigynia ± spreading, light or golden brown, faintly 3–8-veined on each face, obovate, flat except over achene, 4–5.5 × 2.5–3.8 mm, 0.4–0.5 mm thick, margin flat, including wing 0.8–1.5 mm wide; beak light-brown at tip, flat, 0.85–2.2 mm, ciliate-serrulate, abaxial suture with light-brown margin, distance from beak tip to achene 1.8–3 mm. Achenes oblong, 1.7–2 × 0.9–1.1 mm, 0.3–0.4 mm thick. 2n = 74.


Phenology: Fruiting late spring–mid summer.
Habitat: Peaty shores, marshes, wet thickets, woods
Elevation: 0–400 m

Distribution

V23 644-distribution-map.jpg

Ont., Ala., Ark., Conn., Del., D.C., Fla., Ga., Ill., Ind., Ky., La., Md., Mass., Mich., Mo., N.H., N.J., N.Y., N.C., Ohio, Okla., Pa., R.I., S.C., Tenn., Tex., Va.

Discussion

Selected References

None.

Lower Taxa

None.

"+timesaslongasinflorescences" is not declared as a valid unit of measurement for this property."not undefined" is not a number.

... more about "Carex alata"
smaller +
0.3mm +  and 0.4mm +
bidentatate +
papillose +
0 cm0 mm <br />0 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
Joy Mastrogiuseppe +, Paul E. Rothrock +, A. C. Dibble +  and A. A. Reznicek +
Torrey +
shortened +
papillose +
persistent +
short-acute +  and rounded +
not enlarged +
ciliate-serrulate +
0.085 cm0.85 mm <br />8.5e-4 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
11 cm110 mm <br />0.11 m <br /> (50 cm500 mm <br />0.5 m <br />) +
3 (?) +  and 7 (?) +
v--shaped +
2.5mm;6mm +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
round +  and trigonous +
30 cm300 mm <br />0.3 m <br /> (140 cm1,400 mm <br />1.4 m <br />) +
0.28 cm2.8 mm <br />0.0028 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Ont. +, Ala. +, Ark. +, Conn. +, Del. +, D.C. +, Fla. +, Ga. +, Ill. +, Ind. +, Ky. +, La. +, Md. +, Mass. +, Mich. +, Mo. +, N.H. +, N.J. +, N.Y. +, N.C. +, Ohio +, Okla. +, Pa. +, R.I. +, S.C. +, Tenn. +, Tex. +  and Va. +
0–400 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Peaty shores, marshes, wet thickets, woods +
brown +  and pale green +
0.4 cm4 mm <br />0.004 m <br /> (1 cm10 mm <br />0.01 m <br />) +
not prophyllate +, sessile +  and pistillate +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
light-brown +
0.8mm +  and 1.5mm +
with (1-)3-6(-30) bristles and/or scales +
golden brown +  and light +
0.4mm +  and 0.5mm +
Fruiting late spring–mid summer. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
sheathless +  and bristlelike +
0.3 cm3 mm <br />0.003 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
Ann. Lyceum Nat. Hist. New York +
papillose +
y--shaped +  and sharp +
adventitious +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.38 cm3.8 mm <br />0.0038 m <br />) +
tan +  and white-hyaline +
basal +  and proximal +
lanceolate +
0.28 cm2.8 mm <br />0.0028 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
much narrower +
herbaceous +  and membranous +
not differentiated +
cylindric +
Illustrated +  and Endemic +
distinct +
0.6 cm6 mm <br />0.006 m <br /> (2 cm20 mm <br />0.02 m <br />) +
ellipsoid;ovoid +
0.4 cm4 mm <br />0.004 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +  and persistent +
2-3(-4)-fid +
u--shaped +
Carex alata +
Carex sect. Ovales +
species +
plant +  and cespitose +