Carex louisianica

L. H. Bailey

Bull. Torrey Bot. Club 20: 428. 1893.

IllustratedEndemic
Basionym: Carex halei J. Carey ex Chapman Fl. South. U.S., 543. 1860,
Treatment appears in FNA Volume 23. Treatment on page 512. Mentioned on page 513.

Plants loosely colonial, long-rhizomatous. Culms erect, 20–75 cm. Leaves 4–10; basal sheaths reddish to brownish; sheath of the distal leaf 2–10 cm; ligules rounded to triangular, 2–7 mm; blades 10–40 cm × 2–6 mm. Inflorescences 10–42 cm; peduncles of proximal spikes 0.5–10.5 cm, basal 2 peduncles 2–10 cm apart; of terminal spike (3–) 6–18 cm, exceeding the distal pistillate spike by 2–12 cm; bracts leafy, sheaths 0.5–5 cm; blades 10–30 cm × 2–4 mm. Spikes: proximal pistillate spikes 1–3 (–4), separate, 10–30-flowered, ovoid, 1.5–4.5 cm × 1.5–3 cm; terminal staminate spike 1, 0.5–7 cm × 2–3 mm. Pistillate scales 3–7-veined, lanceolate-ovate, 4.5–6.5 × 1.5–2 mm. Anthers 3, 3–4.5 mm. Perigynia narrowly ovoid, 10–14 × 3.5–6 mm, shiny, glabrous; beak conic, 4.5–7 mm. Achenes broadly stipitate, rhomboid, flat faces, angles thickened, 2.5–3.5 × 1.7–2 mm; style same texture as achene.


Phenology: Fruiting late spring–summer.
Habitat: Swamp forests, forest openings
Elevation: 0–400 m

Distribution

V23 956-distribution-map.jpg

Ala., Ark., Del., Fla., Ga., Ill., Ind., Ky., La., Md., Miss., Mo., N.J., N.C., Ohio, Okla., S.C., Tenn., Tex., Va.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Carex louisianica"
rhomboid +
smaller +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
1.7mm;2mm +
0.3 cm3 mm <br />0.003 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
hairy +  and glabrous +
A. A. Reznicek +
L. H. Bailey +
shortened +
reddish;brownish +
cuneate +  and rounded +
Carex halei +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
10 cm100 mm <br />0.1 m <br /> (30 cm300 mm <br />0.3 m <br />) +
v--shaped +
2mm;4mm +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
brown +, reddish +  and purplish +
round +  and trigonous +
20 cm200 mm <br />0.2 m <br /> (75 cm750 mm <br />0.75 m <br />) +
prophyllate +, pedunculate +  and staminate +
Ala. +, Ark. +, Del. +, Fla. +, Ga. +, Ill. +, Ind. +, Ky. +, La. +, Md. +, Miss. +, Mo. +, N.J. +, N.C. +, Ohio +, Okla. +, S.C. +, Tenn. +, Tex. +  and Va. +
0–400 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Swamp forests, forest openings +
10 cm100 mm <br />0.1 m <br /> (42 cm420 mm <br />0.42 m <br />) +
septate-nodulose +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
2 cm20 mm <br />0.02 m <br /> (10 cm100 mm <br />0.1 m <br />) +
rounded +  and triangular +
0.2 cm2 mm <br />0.002 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
3 cm30 mm <br />0.03 m <br /> (6 cm60 mm <br />0.06 m <br />) +
6 cm60 mm <br />0.06 m <br /> (18 cm180 mm <br />0.18 m <br />) +
with (1-)3-6(-30) bristles and/or scales +
stipitate +  and 15-20-veined +
1 cm10 mm <br />0.01 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
ascending +  and spreading +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Fruiting late spring–summer. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
Bull. Torrey Bot. Club +
adventitious +
3-7-veined +  and pistillate +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.65 cm6.5 mm <br />0.0065 m <br />) +
basal +  and proximal +
lanceolate-ovate +
1.5mm;2mm +
shorter or longer +
septate-nodulose +
0.5 cm5 mm <br />0.005 m <br /> (5 cm50 mm <br />0.05 m <br />) +
W1 +, Illustrated +  and Endemic +
10-30-flowered +  and pistillate +
1.5 cm15 mm <br />0.015 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (10.5 cm105 mm <br />0.105 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (3 cm30 mm <br />0.03 m <br />) +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
persistent +
2-3(-4)-fid +
Carex louisianica +
Carex sect. Lupulinae +
species +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
plant +  and colonial +