Carex lurida

Wahlenberg

Kongl. Vetensk. Acad. Nya Handl. 24: 153. 1803.

Common names: Carex luisant
Illustrated
Treatment appears in FNA Volume 23. Treatment on page 508. Mentioned on page 502, 509, 513.

Plants densely to loosely cespitose; rhizomes short, no more than 10 cm. Culms sharply trigonous in cross-section, (15–) 25–95 (–110) cm, scabrous-angled distally. Leaves: basal sheaths reddish purple; ligules as wide to slightly longer than wide; blades dark green, flat to W-shaped, widest leaves (4–) 4.5–11.5 (–13) mm wide, glabrous. Inflorescences 2.7–18 cm; proximal bract 9–45 cm, exceeding inflorescence; proximal 1–3 (–4) spikes pistillate, erect or the proximal often spreading, (12–) 15–22 mm thick, if spikes less than 15 mm thick, then usually less than 2.5 times as long as wide; terminal 1 spike staminate. Pistillate scales narrowly oblong, 3.4–11.2 × 0.5–1.1 mm, as long as or shorter than perigynia, margins often ciliate, apex truncate to retuse, erose, prolonged to scabrous awn. Staminate scales with distinct, scabrous awn, sometimes ciliate-margined. Perigynia spreading, strongly 7–12-veined, veins separate nearly to beak apex, broadly ovate, (6–) 6.5–10.8 × (1.8–) 2–3.5 (–4.2), apex contracted; beak 2.5–5.9 mm, 0.7–0.9 length of body, bidentate, smooth, teeth straight, to 0.2–0.8 mm. Stigmas 3. Achenes yellow to brown, trigonous, papillose.


Phenology: Fruiting May–Aug.
Habitat: Wet meadows, marshes, seeps, shores of ponds, lakes, and streams, open swamp forests, ditches, mostly in acidic, often sandy soils
Elevation: 0–1200 m

Distribution

V23 946-distribution-map.jpg

Nfld. and Labr., N.S., Ont., Que., Ala., Ark., Conn., D.C., Fla., Ga., Ill., Ind., Ky., La., Maine, Md., Mass., Mich., Miss., Mo., N.H., N.J., N.Y., N.C., Ohio, Okla., Pa., R.I., S.C., Tenn., Tex., Vt., Va., W.Va., Wis., Mexico, West Indies, South America

Discussion

Carex lurida is an abundant, variable, and often weedy species. A few specimens appear to be hybrids of C. lurida with C. lupulina.

Selected References

None.

Lower Taxa

None.

"prolonged" is not a number.

... more about "Carex lurida"
yellow +  and brown +
papillose +
trigonous +
awned +  and awnless +
not papillose +
A. A. Reznicek +  and Bruce A. Ford +
Wahlenberg +
distinct +
shortened +
not +  and fibrous +
truncate +  and rounded +
Vesicariae +
0.7 length of body;0.9 length of body +
bidentate +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.59 cm5.9 mm <br />0.0059 m <br />) +
flat +  and w-shaped +
0mm;20mm +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
Carex luisant +
brown +, reddish-brown +  and reddish purple +
scabrous-angled +  and trigonous +
25 cm250 mm <br />0.25 m <br /> (95 cm950 mm <br />0.95 m <br />) +
Nfld. and Labr. +, N.S. +, Ont. +, Que. +, Ala. +, Ark. +, Conn. +, D.C. +, Fla. +, Ga. +, Ill. +, Ind. +, Ky. +, La. +, Maine +, Md. +, Mass. +, Mich. +, Miss. +, Mo. +, N.H. +, N.J. +, N.Y. +, N.C. +, Ohio +, Okla. +, Pa. +, R.I. +, S.C. +, Tenn. +, Tex. +, Vt. +, Va. +, W.Va. +, Wis. +, Mexico +, West Indies +  and South America +
0–1200 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Wet meadows, marshes, seeps, shores of ponds, lakes, and streams, open swamp forests, ditches, mostly in acidic, often sandy soils +
2.7 cm27 mm <br />0.027 m <br /> (18 cm180 mm <br />0.18 m <br />) +
prophyllate +, pedunculate +  and pistillate +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
as wide to slightly longer than wide +
with (1-)3-6(-30) bristles and/or scales +
0.2 cm2 mm <br />0.002 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Fruiting May–Aug. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
short-sheathed +, sheathless +  and leaflike +
9 cm90 mm <br />0.09 m <br /> (45 cm450 mm <br />0.45 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
Kongl. Vetensk. Acad. Nya Handl. +
adventitious +
ciliate-margined +, staminate +  and pistillate +
green +  and dark-brown +
0.34 cm3.4 mm <br />0.0034 m <br /> (1.12 cm11.2 mm <br />0.0112 m <br />) +
basal +  and proximal +
0.5mm;1.1mm +
septate-nodulose +
Illustrated +
staminate +  and pistillate +
0 cm0 mm <br />0 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
persistent +
2-3(-4)-fid +
Carex lurida +
Carex sect. Vesicariae +
species +
straight +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
2 +  and 3.5 +
plant +  and cespitose +
4.5mm +  and 11.5mm +