Carex livida

(Wahlenberg) Willdenow

Sp. Pl. 4(1): 285. 1805.

Common names: Carex livide
Illustrated
Basionym: Carex limosa var. livida Wahlenberg Kongl. Vetensk. Acad. Nya Handl. 24: 162. 1803
Treatment appears in FNA Volume 23. Treatment on page 429. Mentioned on page 427, 430.

Plants colonial, long-rhizomatous. Culms 15–55 cm, smooth to scabrous distally. Leaves: proximal sheaths pale-brown to dark-brown, occasionally red tinged, 4.5–8 (–10) mm thick; ligules 1.2–3.9 mm, usually 0.6–1.5 times as long as wide; leaf-blades very glaucous, channeled, 4.5–40 cm × 1.5–3.5 (–6.5) mm, coriaceous. Inflorescences 2.2–8.59 (–12) cm, 0.6–1.8 length of proximal bract; proximal bract 0.8–11 mm, sheath 0–1.2cm, blade 0.8-10 cm; pistillate spikes densely flowered, ovoid to short-cylindric, 0.7–2.5 cm × 4–5.5 mm wide; lateral spikes erect or ascending on stiff peduncles. Pistillate scales pale-brown to dark purple-brown with broad green center and narrow hyaline margins, obtuse to acute. Perigynia strongly ascending in the spikes, glaucous, fusiform, 3–4.8 (–5) × (1–) 1.3–2 mm wide, heavily papillose; beak absent or minute, erect, straight. Achenes pale to dark-brown, 2.1–2.5 × 1.2–1.8 mm wide. 2n = 32.


Phenology: Fruiting late spring–early summer.
Habitat: Boreal fens, calcareous floating mats
Elevation: 0–1100 m

Distribution

V23 786-distribution-map.jpg

St. Pierre and Miquelon, Alta., B.C., Man., N.B., Nfld. and Labr., N.W.T., N.S., Ont., P.E.I., Que., Sask., Yukon, Alaska, Calif., Ind., Maine, Mass., Mich., Minn., Mont., N.H., N.J., N.Y., Oreg., Vt., Wash., Wis., Wyo., Central America (Panama), South America, Eurasia

Discussion

The distribution of Carex livida is very scattered; it is uncommon to rare over much of its range, especially in districts with predominantly acidic soils.

Plants occurring disjunctly in acidic soils of the New Jersey pine barrens are unusually broad leaved, occasionally with leaves to 6.5 mm wide. These populations need further research to assess their status.

Selected References

None.

Lower Taxa

None.

"broad" is not a number.

... more about "Carex livida"
pale +  and dark-brown +
trigonous +
smaller +
1.2mm;1.8mm +
not septate-nodulose +
not +  and beaked +
papillose +  and smooth +
Paul E. Rothrock +  and A. A. Reznicek +
(Wahlenberg) Willdenow +
shortened +
tapering +
Carex limosa var. livida +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
straight +
minute +
0 cm0 mm <br />0 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
m--shaped +
0.8 cm8 mm <br />0.008 m <br /> (?) +  and 10 cm100 mm <br />0.1 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 +
Carex livide +
purple +  and brown +
smooth to scabrous +
round +  and trigonous +
15 cm150 mm <br />0.15 m <br /> (55 cm550 mm <br />0.55 m <br />) +
St. Pierre and Miquelon +, Alta. +, B.C. +, Man. +, N.B. +, Nfld. and Labr. +, N.W.T. +, N.S. +, Ont. +, P.E.I. +, Que. +, Sask. +, Yukon +, Alaska +, Calif. +, Ind. +, Maine +, Mass. +, Mich. +, Minn. +, Mont. +, N.H. +, N.J. +, N.Y. +, Oreg. +, Vt. +, Wash. +, Wis. +, Wyo. +, Central America (Panama) +, South America +  and Eurasia +
0–1100 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Boreal fens, calcareous floating mats +
8.59 cm85.9 mm <br />0.0859 m <br /> (12 cm120 mm <br />0.12 m <br />) +
0.6 length of proximal bract;1.8 length of proximal bract +
2.2 cm22 mm <br />0.022 m <br /> (8.59 cm85.9 mm <br />0.0859 m <br />) +
prophyllate +, pedunculate +  and pistillate +
ascending +  and erect +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.65 cm6.5 mm <br />0.0065 m <br />) +
4.5 cm45 mm <br />0.045 m <br /> (40 cm400 mm <br />0.4 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.39 cm3.9 mm <br />0.0039 m <br />) +
bidentate +  and entire +
with (1-)3-6(-30) bristles and/or scales +
sessile +  and veined +
yellowbrown +  and dark-brown +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Fruiting late spring–early summer. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
long-sheathing +  and leaflike +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
adventitious +
pale-brown +  and dark purple-brown +
basal +  and proximal +
obtuse;acute +
cylindric +
0 cm0 mm <br />0 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Illustrated +
flowered +  and pistillate +
ovoid;short-cylindric +
0.4 cm4 mm <br />0.004 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +
2-3(-4)-fid +
Carex livida +
Carex sect. Paniceae +
species +
plant +  and colonial +
0 cm0 mm <br />0 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +