Common names: Carex à balais
IllustratedEndemic
Treatment appears in FNA Volume 23. Treatment on page 362. Mentioned on page 360.

Inflorescences dense to open, 1.5–6 cm; spikes densely aggregated to distant. Pistillate scales golden brown or pale, sometimes darkened when mature. Perigynia pale or golden-brown, similar in color to pistillate scales and beaks, lanceolate to elliptic, 4.2–6.8 × 1.2–2 mm, (2.5–) 2.8–4 times as long as wide. 2n = 56, 58, 60, 68.


Phenology: Fruiting late spring–summer.
Habitat: Wet to dry, open habitats, usually on acidic, often sandy soils
Elevation: 0–2000 m

Distribution

V23 633-distribution-map.jpg

Alta., B.C., Man., N.B., Nfld. and Labr. (Nfld.), N.S., Ont., P.E.I., Que., Ark., Calif., Colo., Conn., Del., D.C., Ga., Idaho, Ill., Ind., Iowa, Kans., Ky., Maine, Md., Mass., Mich., Minn., Miss., Mo., Mont., Nebr., N.H., N.J., N.Y., N.C., Ohio, Okla., Oreg., Pa., R.I., S.C., S.Dak., Tenn., Vt., Va., Wash., W.Va., Wis.

Discussion

Some populations of Carex scoparia from the central and southern Appalachian Mountains have unusually long beaks (greater than 3.7 mm). When long beaks occur in more robust plants with large spikes and spreading perigynia, the plants look remarkably different from typical lowland or western populations.

Carex scoparia var. scoparia grows syntopically with other species from sect. Ovales and may form sterile hybrids. P. E. Rothrock et al. (1997) documented putative hybrids between C. scoparia and C. alata, C. hormathodes, C. straminea, and C. suberecta.

See note under 146. Carex longii.

Selected References

None.

Lower Taxa

None.

"+timesaslongasinflorescences" is not declared as a valid unit of measurement for this property."not undefined" is not a number.

68 +, 60 +, 58 +  and 56 +
elliptic;ovate +
smaller +
0.3mm +  and 0.4mm +
bidentatate +
papillose +
Joy Mastrogiuseppe +, Paul E. Rothrock +, A. C. Dibble +  and A. A. Reznicek +
Schkuhr ex Willdenow +
shortened +
persistent +
fewer;fewer +
acute +  and short-attenuate +
not enlarged +
ciliate-serrulate +
flattish +
0.3 cm3 mm <br />0.003 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
10 cm100 mm <br />0.1 m <br /> (32 cm320 mm <br />0.32 m <br />) +
3 (?) +  and 5 (?) +
v--shaped +
1.4mm;3mm +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
Carex à balais +
fertile +  and vegetative +
round +  and trigonous +
20 cm200 mm <br />0.2 m <br /> (100 cm1,000 mm <br />1 m <br />) +
0.23 cm2.3 mm <br />0.0023 m <br /> (0.48 cm4.8 mm <br />0.0048 m <br />) +
Alta. +, B.C. +, Man. +, N.B. +, Nfld. and Labr. (Nfld.) +, N.S. +, Ont. +, P.E.I. +, Que. +, Ark. +, Calif. +, Colo. +, Conn. +, Del. +, D.C. +, Ga. +, Idaho +, Ill. +, Ind. +, Iowa +, Kans. +, Ky. +, Maine +, Md. +, Mass. +, Mich. +, Minn. +, Miss. +, Mo. +, Mont. +, Nebr. +, N.H. +, N.J. +, N.Y. +, N.C. +, Ohio +, Okla. +, Oreg. +, Pa. +, R.I. +, S.C. +, S.Dak. +, Tenn. +, Vt. +, Va. +, Wash. +, W.Va. +  and Wis. +
0–2000 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Wet to dry, open habitats, usually on acidic, often sandy soils +
brown +, yellow +  and green +
nodding +  and arching +
1.5 cm15 mm <br />0.015 m <br /> (6 cm60 mm <br />0.06 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
not prophyllate +, sessile +  and pistillate +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
hyaline +, golden brown +  and white +
0.2mm +  and 0.6mm +
gold +  and green +
with (1-)3-6(-30) bristles and/or scales +
golden-brown +  and pale +
0.42 cm4.2 mm <br />0.0042 m <br /> (0.68 cm6.8 mm <br />0.0068 m <br />) +
spreading +  and ascending +
0.35mm +  and 0.55mm +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Fruiting late spring–summer. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
sheathless +  and bristlelike +
0.2 cm2 mm <br />0.002 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
adventitious +
darkened +, pale +  and golden brown +
basal +  and proximal +
lanceolate +
0.34 cm3.4 mm <br />0.0034 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
shorter and narrower +
herbaceous +  and membranous +
not differentiated +
cylindric +
Illustrated +  and Endemic +
densely aggregated +  and distant +
0.9 cm9 mm <br />0.009 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
distinct +
0.7 cm7 mm <br />0.007 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
ellipsoid +
0.3 cm3 mm <br />0.003 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +  and persistent +
2-3(-4)-fid +
Carex scoparia var. scoparia +
Carex scoparia +
variety +
plant +  and cespitose +