Carex albolutescens

Schweinitz

Ann. Lyceum Nat. Hist. New York 1: 66. 1824.

IllustratedEndemic
Treatment appears in FNA Volume 23. Treatment on page 369. Mentioned on page 336, 337, 367, 368, 373.

Plants densely cespitose. Culms 25–120 cm; vegetative culms inconspicuous with few leaves clustered at apex. Leaves: sheaths conspicuously green-veined adaxially nearly to apex, narrow hyaline band or sharp Y-shaped region at collar, adaxially firm, summits U-shaped, not prolonged; distal ligules 1.5–4.5 mm; blades 3–5 per fertile culm, 9–25 cm × 2–3.5 mm. Inflorescences erect, open, yellow-green to brown, 1.5–4 cm × 4–12 mm; proximal internode 3–12 mm; 2d internode 3–9 mm; proximal bracts scalelike, with bristle tips, shorter than inflorescences. Spikes 2–8, distinct, ellipsoid to globose, 5–13 × 4–6.5 mm, base acute, apex rounded; staminate portion of well-developed spikes less than 2 mm. Pistillate scales white-hyaline or brown, with green midstripe, broadly lanceolate or ovate, 2.5–3.4 mm, longer and narrower than perigynia, apex acute. Perigynia spreading, green to light-brown, conspicuously 4–many-veined on each face, winged to base, obovate, flat except over achene or somewhat planoconvex, 2.6–4.5 × 1.5–2.7 mm, 0.3–0.45 mm thick, margin flat, including wing 0.4–0.7 mm wide; beak pale-brown at tip, flat, ciliate-serrulate, abaxial suture with white or brown hyaline margin, distance from beak tip to achene 1–2 mm. Achenes oblong, 1.3–1.7 × 0.75–1 mm, 0.3–0.4 mm thick; styles laterally sinuate. 2n = 66.


Phenology: Fruiting early–mid summer.
Habitat: Acidic swamps, low woods, thickets
Elevation: 0–300 m

Distribution

V23 650-distribution-map.jpg

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

Discussion

Carex albolutescens is easily confused with C. festucacea, which has orbiculate or broadly ovate, plumply plano-convex perignyia bodies, broader (usually more than 1 mm wide), more ovoid achenes, and straight or abaxial-adaxially bent styles (P. E. Rothrock 1991).

See note under 146. Carex longii.

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 albolutescens"
smaller +
0.3mm +  and 0.4mm +
bidentatate +
papillose +
Joy Mastrogiuseppe +, Paul E. Rothrock +, A. C. Dibble +  and A. A. Reznicek +
Schweinitz +
shortened +
persistent +
not enlarged +
ciliate-serrulate +
9 cm90 mm <br />0.09 m <br /> (25 cm250 mm <br />0.25 m <br />) +
3 (?) +  and 5 (?) +
v--shaped +
2mm;3.5mm +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
inconspicuous +
fertile +  and vegetative +
round +  and trigonous +
25 cm250 mm <br />0.25 m <br /> (120 cm1,200 mm <br />1.2 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
Ala. +, Ark. +, Conn. +, Del. +, D.C. +, Fla. +, Ga. +, Ill. +, Ind. +, Ky. +, La. +, Md. +, Mass. +, Mich. +, Miss. +, Mo. +, N.J. +, N.Y. +, N.C. +, Ohio +, Okla. +, Pa. +, R.I. +, S.C. +, Tenn. +, Tex. +, Va. +  and W.Va. +
0–300 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Acidic swamps, low woods, thickets +
yellow-green +  and brown +
0.3 cm3 mm <br />0.003 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
not prophyllate +, sessile +  and pistillate +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
0.3mm +  and 0.45mm +
brown hyaline +  and white +
planoconvex;planoconvex +
with (1-)3-6(-30) bristles and/or scales +
winged +  and 4-many-veined +
green +  and light-brown +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
Fruiting early–mid summer. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
sheathless +  and bristlelike +
0.3 cm3 mm <br />0.003 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Ann. Lyceum Nat. Hist. New York +
y--shaped +  and sharp +
adventitious +
brown +  and white-hyaline +
basal +  and proximal +
ovate;lanceolate +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.34 cm3.4 mm <br />0.0034 m <br />) +
longer and narrower +
herbaceous +  and membranous +
not differentiated +
cylindric +
W1 +, Illustrated +  and Endemic +
well-developed +
distinct +
0.5 cm5 mm <br />0.005 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
0 cm0 mm <br />0 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
ellipsoid;globose +
0.4 cm4 mm <br />0.004 m <br /> (0.65 cm6.5 mm <br />0.0065 m <br />) +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +  and persistent +
sinuate +
not prolonged +
u--shaped +
Carex albolutescens +
Carex sect. Ovales +
species +
plant +  and cespitose +