Carex wiegandii

Mackenzie in N. L. Brittion et al.

in N. L. Brittion et al., N. Amer. Fl. 18: 108. 1931.

Common names: Carex de Wiegand
IllustratedEndemic
Treatment appears in FNA Volume 23. Treatment on page 328. Mentioned on page 326, 329.

Culms 10–105 cm. Leaves 3–8 per culm; sheaths tight, inner band hyaline, 4–23 cm, apex concave, ± glabrous; ligules rounded to obtuse, 0.9–2.5 mm; blades plicate, 11–45 cm × 1.7–5 mm, widest leaf 2.8–5 mm wide. Inflorescences (0.8–) 1.5–3 cm; spikes 4–6; lateral spikes gynecandrous, 4.5–8 mm, sessile, staminate portion (0–) 1–3-flowered, (0–) 0.5–2 mm, pistillate portion 5–21-flowered, 3–8 mm; basal 2 spikes 1.3–9.5 mm apart; terminal spike androgynous, 6.1–14.5 mm, staminate portion 5–20-flowered, 2–8.6 × 0.8–1.3 mm, pistillate portion 7–25-flowered, 3–8 × 5–7.3 mm. Pistillate scales ovate, 1.45–2 (–2.2) × 1.3–1.9 mm, apex obtuse to acute, sometimes shortly mucronate. Staminate scales ovate, 1.2–2.3 × 1.4–1.8 mm, apex obtuse to acute. Anthers 0.7–1.3 mm. Perigynia spreading to reflexed, green to castaneous, 5–18-veined abaxially, faintly 0–10-veined adaxially, broadly ovate, 2.55–3.75 × (1.25–) 1.4–2 (–2.1) mm, (1.4–) 1.6–2.5 times as long as wide; beak 0.55–1.1 (–1.35) mm, 0.25–0.55 length of body, serrulate, teeth 0.2–0.5 mm. Achenes ovate, 1.4–1.9 × 1.1–1.55 mm.


Phenology: Fruiting late spring–early summer.
Habitat: Bogs, openings in acidic conifer, mixed, or alder swamps, wet acidic sandy or peaty meadows
Elevation: 0–1300 m

Distribution

V23 583-distribution-map.jpg

St. Pierre and Miquelon, N.S., Nfld. and Labr., N.S., Ont., P.E.I., Que., Maine, Mass., Mich., N.H., N.Y., Pa., Vt.

Discussion

A putative hybrid between Carex wiegandii and C. echinata subsp. echinata has been collected in Michigan.

Selected References

None.

Lower Taxa

None.
... more about "Carex wiegandii"
0.14 cm1.4 mm <br />0.0014 m <br /> (0.19 cm1.9 mm <br />0.0019 m <br />) +
much smaller +
1.1mm;1.55mm +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.13 cm1.3 mm <br />0.0013 m <br />) +
A. A. Reznicek +
Mackenzie in N. L. Brittion et al. +
shortened +
white-hyaline +, hyaline +  and narrow +
rounded +  and cordate +
0.11 cm1.1 mm <br />0.0011 m <br /> (0.135 cm1.35 mm <br />0.00135 m <br />) +
0.25 length of body;0.55 length of body +
0.055 cm0.55 mm <br />5.5e-4 m <br /> (0.11 cm1.1 mm <br />0.0011 m <br />) +
11 cm110 mm <br />0.11 m <br /> (45 cm450 mm <br />0.45 m <br />) +
inconspicuous +
v--shaped +
1.7mm;5mm +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
Carex de Wiegand +
0.8mm +  and 5mm +
round +  and trigonous +
10 cm100 mm <br />0.1 m <br /> (105 cm1,050 mm <br />1.05 m <br />) +
St. Pierre and Miquelon +, N.S. +, Nfld. and Labr. +, Ont. +, P.E.I. +, Que. +, Maine +, Mass. +, Mich. +, N.H. +, N.Y. +, Pa. +  and Vt. +
0–1300 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Bogs, openings in acidic conifer, mixed, or alder swamps, wet acidic sandy or peaty meadows +
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (3 cm30 mm <br />0.03 m <br />) +
4 cm40 mm <br />0.04 m <br /> (23 cm230 mm <br />0.23 m <br />) +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
rounded +  and obtuse +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
with (1-)3-6(-30) bristles and/or scales +
0-10-veined +  and 5-18-veined +
0.2 cm2 mm <br />0.002 m <br /> (0.21 cm2.1 mm <br />0.0021 m <br />) +
green +  and castaneous +
(1.4-)1.6-2.5 +
0.255 cm2.55 mm <br />0.00255 m <br /> (0.375 cm3.75 mm <br />0.00375 m <br />) +
spreading +  and reflexed +
0.14 cm1.4 mm <br />0.0014 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Fruiting late spring–early summer. +
2-3(-4)-carpellate +
7-25-flowered +, pistillate +, 5-20-flowered +, staminate +, 5-21-flowered +  and (0-)1-3-flowered +
0 cm0 mm <br />0 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (0.73 cm7.3 mm <br />0.0073 m <br />) +
3 (?) +  and 1 (?) +
in N. L. Brittion et al., N. Amer. Fl. +
adventitious +
staminate +  and pistillate +
0.2 cm2 mm <br />0.002 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.23 cm2.3 mm <br />0.0023 m <br />) +
basal +  and proximal +
ovate;ovate +
1.4mm;1.8mm +
cylindric +
Illustrated +  and Endemic +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.95 cm9.5 mm <br />0.0095 m <br />) +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +
2-3(-4)-fid +
Carex wiegandii +
Carex sect. Stellulatae +
species +
staminate +  and pistillate +
0.61 cm6.1 mm <br />0.0061 m <br /> (1.45 cm14.5 mm <br />0.0145 m <br />) +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
plant +  and cespitose +
2.8mm +  and 5mm +