Carex laxiculmis var. laxiculmis

Common names: Carex à tiges faibles
Treatment appears in FNA Volume 23.

Leaves usually glaucous; widest blade 6.4–11.8 mm wide. Longest staminate spike (10–) 12–25 mm. 2n = 44, 46.


Phenology: Fruiting spring–early summer.
Habitat: Low, wet, deciduous or mixed deciduous-evergreen forests, along edges of springs, seeps, and streams, usually clay soils
Elevation: 0–1000 m

Distribution

V23 821-distribution-map.jpg

Ont., Ala., Ark., Conn., Del., D.C., Ga., Ill., Ind., Iowa, Ky., Maine, Md., Mass., Mich., Mo., N.H., N.J., N.Y., N.C., Ohio, Pa., R.I., S.C., Tenn., Vt., Va., W.Va., Wis.

Discussion

Selected References

None.

Lower Taxa

None.
0.22 cm2.2 mm <br />0.0022 m <br /> (0.32 cm3.2 mm <br />0.0032 m <br />) +
concave;ovoid +
fitting +
1.2mm;1.8mm +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Charles T. Bryson +  and Robert F. C. Naczi +
Schweinitz +
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
shortened +
light-brown;white +
tapering +
tapering +  and bent +
m--shaped +
0-3.5 times wider than bract blades +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
2 cm20 mm <br />0.02 m <br /> (11.8 cm118 mm <br />0.118 m <br />) +
ascending +  and appressed +
scale-like +  and leaflike +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.48 cm4.8 mm <br />0.0048 m <br />) +
parallel +  and divergent +
terete +, rolled +  and plicate +
10 cm100 mm <br />0.1 m <br /> (?) +
Carex à tiges faibles +
purple +  and brown +
9 cm90 mm <br />0.09 m <br /> (48 cm480 mm <br />0.48 m <br />) +
spreading +, ascending +  and erect +
round +  and trigonous +
0.6mm;1mm +
Ont. +, Ala. +, Ark. +, Conn. +, Del. +, D.C. +, Ga. +, Ill. +, Ind. +, Iowa +, Ky. +, Maine +, Md. +, Mass. +, Mich. +, Mo. +, N.H. +, N.J. +, N.Y. +, N.C. +, Ohio +, Pa. +, R.I. +, S.C. +, Tenn. +, Vt. +, Va. +, W.Va. +  and Wis. +
0–1000 m +
subtending +
1 +  and 2 +
biconvex +  and trigonous +
Low, wet, deciduous or mixed deciduous-evergreen forests, along edges of springs, seeps, and streams, usually clay soils +
prophyllate +, pedunculate +  and pistillate +
8 cm80 mm <br />0.08 m <br /> (36 cm360 mm <br />0.36 m <br />) +
spreading +, ascending +  and erect +
0.3 cm3 mm <br />0.003 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
1 cm10 mm <br />0.01 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
1.2 cm12 mm <br />0.012 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
reddish-brown +, hyaline +  and , +
0.7 cm7 mm <br />0.007 m <br /> (3.2 cm32 mm <br />0.032 m <br />) +
0 cm0 mm <br />0 m <br /> (9 cm90 mm <br />0.09 m <br />) +
with (1-)3-6(-30) bristles and/or scales +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Fruiting spring–early summer. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
bladeless +  and leaflike +
Ann. Lyceum Nat. Hist. New York +
adventitious +
staminate +  and pistillate +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
basal +  and proximal +
obovate;keeled +
1mm;1.2mm +
0.9 cm9 mm <br />0.009 m <br /> (11.9 cm119 mm <br />0.119 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
cylindric +
Illustrated +  and Endemic +
staminate +  and pistillate +
0 cm0 mm <br />0 m <br /> (9.5 cm95 mm <br />0.095 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
basal +  and proximal +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +
2-3(-4)-fid +
slender +
Carex laxiculmis var. laxiculmis +
Carex laxiculmis +
variety +
plant +  and cespitose +
6.4mm +  and 11.8mm +