Carex blanda

Dewey

Amer. J. Sci. Arts 10: 45. 1825.

Common names: Carex lisse
IllustratedEndemic
Treatment appears in FNA Volume 23. Treatment on page 439. Mentioned on page 433, 437, 458, 460.

Culms densely tufted, central or lateral, rarely erect, ascending, lax, or, occasionally, decumbent, slightly winged, 14–53 cm × 0.8–1 mm. Leaves: basal sheaths brown or light-brown; sheaths 1–48 mm; blades erect, ascending or lax, green, midrib well developed abaxially, lateral-veins developed adaxially, flat, 14–36 cm × 1–10 mm, blades of overwintering leaves smooth abaxially. Inflorescences: peduncles of proximal absent; of terminal spike 0–1.7 cm. Bracts 0.9–17 cm × 1–8 mm, bract blade of distal lateral spikes linear, narrower than spikes, not concealing them (viewed from abaxial surface), widest bract blade of distalmost lateral spike 0.5–3.4 mm wide. Spikes 4 (–5) per culm; lateral spikes scattered or distal 2 proximate, 15–18 × 3–4 mm; terminal spike overtopping or proximate to proximal pistillate spikes, linear, 9–20 × 1.8–2.4 mm. Pistillate scales 2.8–3 × 1.4–1.6 mm, apex apiculate to aristate, awn to 1.5 mm. Staminate scales 1.8–3.2 × 1.4–1.8 mm, margins hyaline, apex acute or acuminate. Anthers 1.8–2.2 mm. Perigynia 4–18 per spike, closely overlapping, ratio of longer lateral spike length to perigynia number 0.8–1.7, aggregated, ascending, conspicuously (22–) 25–32-veined, obovate to elliptic-obovate, 2.5–3.8 (–4.1) × 1.3–2.2 mm, 1.5–1.9 times as long as achene bodies; beak abruptly bent, 0.2–0.6 mm. Achenes obovoid, 2.1–3.2 × 0.8–1.8 mm. 2n = 30, 32, 34, 36.


Phenology: Fruiting spring–early summer.
Habitat: Wet, moist or dry, open areas or in deciduous or deciduous-evergreen forests, wide range of soil types, frequently weedy
Elevation: 0–1000 m

Distribution

V23 805-distribution-map.jpg

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

Discussion

Carex blanda is the most common and widespread of all members of sect. Laxiflorae. It is often locally abundant and capable of being somewhat weedy in areas where it is frequent. It growns in the most diverse environmental and edaphic conditions of all members of sect. Laxiflorae. Plants of C. blanda from drier or wetter habitats usually produce narrower leaves and/or culms than plants from mesic or shaded habitats. Additional research is needed to determine if these are simply expressions due to environment and edaphic conditions or a complex of closely related species or varieties.

Selected References

None.

Lower Taxa

None.

No values specified.

... more about "Carex blanda"
36 +, 34 +, 32 +  and 30 +
0.21 cm2.1 mm <br />0.0021 m <br /> (0.32 cm3.2 mm <br />0.0032 m <br />) +
0.8mm;1.8mm +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
Charles T. Bryson +  and Robert F. C. Naczi +
0 cm0 mm <br />0 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
shortened +
light-brown;brown +
tapering +
Laxiflorae +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
m--shaped +
0mm;20mm +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
not concealing +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.34 cm3.4 mm <br />0.0034 m <br />) +
0.9 cm9 mm <br />0.009 m <br /> (17 cm170 mm <br />0.17 m <br />) +
ascending +  and appressed +
scale-like +  and leaflike +
0.1 cm1 mm <br />0.001 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
parallel +  and divergent +
terete +, rolled +  and plicate +
Carex lisse +
purple +  and brown +
14 cm140 mm <br />0.14 m <br /> (53 cm530 mm <br />0.53 m <br />) +
ascending +  and erect +
lateral +  and central +
round +  and trigonous +
0.8mm;1mm +
1.5 cm15 mm <br />0.015 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Ont. +, Que. +, Ala. +, Ark. +, Colo. +, Conn. +, Del. +, D.C. +, Fla. +, Ga. +, Ill. +, Ind. +, Iowa +, Kans. +, Ky. +, La. +, Maine +, Md. +, Mass. +, Mich. +, Minn. +, Miss. +, Mo. +, Nebr. +, N.H. +, N.J. +, N.Mex. +, N.Y. +, N.C. +, N.Dak. +, Ohio +, Okla. +, Pa. +, R.I. +, S.C. +, S.Dak. +, Tenn. +, Tex. +, Vt. +, Va. +, W.Va. +, Wis. +  and Wyo. +
0–1000 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Wet, moist or dry, open areas or in deciduous or deciduous-evergreen forests, wide range of soil types, frequently weedy +
14 cm140 mm <br />0.14 m <br /> (36 cm360 mm <br />0.36 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (1 cm10 mm <br />0.01 m <br />) +
prophyllate +, pedunculate +  and pistillate +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
overwintering +
basal +  and cauline +
with (1-)3-6(-30) bristles and/or scales +
(22-)25-32-veined +
aggregated +  and overlapping +
0.38 cm3.8 mm <br />0.0038 m <br /> (0.41 cm4.1 mm <br />0.0041 m <br />) +
not black-mottled +, yellowbrown +  and dark-brown +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
Fruiting spring–early summer. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
long-sheathing +  and leaflike +
awned +  and acute +
Amer. J. Sci. Arts +
adventitious +
staminate +  and pistillate +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.32 cm3.2 mm <br />0.0032 m <br />) +
basal +  and proximal +
2-keeled +
1.4mm;1.8mm +
cylindric +
0.1 cm1 mm <br />0.001 m <br /> (4.8 cm48 mm <br />0.048 m <br />) +
Illustrated +  and Endemic +
0 cm0 mm <br />0 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +
2-3(-4)-fid +
Carex blanda +
Carex sect. Laxiflorae +
species +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.24 cm2.4 mm <br />0.0024 m <br />) +
plant +  and cespitose +