Carex albicans var. albicans

IllustratedEndemic
Synonyms: Carex artitecta Mackenzie Carex emmonsii var. muhlenbergii Carex varia Muhlenberg
Treatment appears in FNA Volume 23. Treatment on page 541.

Rhizomes ascending to erect, 0–5 (–30) mm. Staminate spikes 8.4–11.1 × 1–1.8 mm; staminate scales from median portion of spike 2.9–3.7 × 1–1.4 mm, with weak or strong midrib usually not reaching apex of scale, usually without teeth on midrib. Perigynia 2.5–3.3 × 0.9–1.1 mm; beak with apical teeth 0.2–0.3 mm. 2n = 36.


Phenology: Fruiting mid Apr–early Jun.
Habitat: Mostly acidic, dry soils of sandstone and granite, also calcareous regions, wooded slopes, sandstone ridges, woodland clearings, in partial shade of deciduous forests, under cedars
Elevation: 50–800 m

Distribution

V23 1020-distribution-map.jpg

N.S., Ont., Que., Ala., Ark., Conn., Del., Ga., Ill., Ind., Iowa, Kans., Ky., La., Maine, Md., Mass., Mich., Miss., Mo., Nebr., N.H., N.J., N.Y., N.C., Ohio, Okla., Pa., R.I., S.C., Tenn., Tex., Vt., Va., W.Va.

Discussion

Selected References

None.

Lower Taxa

None.
0.12 cm1.2 mm <br />0.0012 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
trigonous;ellipsoid +
0.7mm;1.3mm +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.27 cm2.7 mm <br />0.0027 m <br />) +
beaked +, awned +  and cuspidate +
glabrous +  and pubescent +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
William J. Crins +  and Jeff H. Rettig +
Willdenow ex Sprengel +
shortened +
rounded +  and tapering +
ciliate-serrulate +
straight +
bidentate +  and bent +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.11 cm1.1 mm <br />0.0011 m <br />) +
v--shaped +
2mm;4.5mm +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
brown +  and red +
smooth to scabrous +
round +  and trigonous +
10 cm100 mm <br />0.1 m <br /> (45 cm450 mm <br />0.45 m <br />) +
N.S. +, Ont. +, Que. +, Ala. +, Ark. +, Conn. +, Del. +, Ga. +, Ill. +, Ind. +, Iowa +, Kans. +, Ky. +, La. +, Maine +, Md. +, Mass. +, Mich. +, Miss. +, Mo. +, Nebr. +, N.H. +, N.J. +, N.Y. +, N.C. +, Ohio +, Okla. +, Pa. +, R.I. +, S.C. +, Tenn. +, Tex. +, Vt. +, Va. +  and W.Va. +
50–800 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Mostly acidic, dry soils of sandstone and granite, also calcareous regions, wooded slopes, sandstone ridges, woodland clearings, in partial shade of deciduous forests, under cedars +
prophyllate +, pedunculate +, staminate +, , +  and pistillate +
pale +  and bright green +
papillose;scabrous +
shorter to longer +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
0.29 cm2.9 mm <br />0.0029 m <br /> (0.37 cm3.7 mm <br />0.0037 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
strong +  and weak +
with (1-)3-6(-30) bristles and/or scales +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.33 cm3.3 mm <br />0.0033 m <br />) +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.11 cm1.1 mm <br />0.0011 m <br />) +
Fruiting mid Apr–early Jun. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
scale-like +  and filiform +
0.5 cm5 mm <br />0.005 m <br /> (3 cm30 mm <br />0.03 m <br />) +
reddish-brown +  and dark reddish +
ascending +  and erect +
0 cm0 mm <br />0 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
adventitious +
staminate +  and pistillate +
pale +  and dark reddish-brown +
0.28 cm2.8 mm <br />0.0028 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
basal +  and proximal +
lanceolate;ovate +
exceeding perigynia +  and equaling +
0.6mm;1.9mm +
cylindric +
Illustrated +  and Endemic +
0.84 cm8.4 mm <br />0.0084 m <br /> (1.11 cm11.1 mm <br />0.0111 m <br />) +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.99 cm9.9 mm <br />0.0099 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +
2-3(-4)-fid +
Carex artitecta +, Carex emmonsii var. muhlenbergii +  and Carex varia +
Carex albicans var. albicans +
Carex albicans +
variety +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
stoloniferous +  and rhizomatous +
plant +  and cespitose +