Carex glaucodea

Tuckerman ex Olney

Proc. Amer. Acad. Arts 7: 395. 1868.

IllustratedEndemic
Synonyms: Carex flaccosperma var. glaucodea (Tuckerman ex Olney) Kükenthal
Treatment appears in FNA Volume 23. Treatment on page 457. Mentioned on page 442, 449, 458, 460.

Plants densely cespitose; rhizome internodes 1.2–2.8 mm thick. Culms yellowbrown at base, 10–50 cm. Leaves: sheaths glabrous; blades glaucous, widest blades (5.1–) 5.7–10.8 mm wide, smooth abaxially or sparsely antrorsely scaberulous on main veins. Inflorescences 0.56–1 of culm height; peduncles of lateral smooth; peduncles of terminal spikes (0.5–) 1.6–15 (–31) mm, barely to much exceeding lateral spikes; proximal bract sheath loose, abaxially glabrous, sheath front apex truncate; ligules 5.2–10 mm; distal bract slightly shorter than to much exceeding terminal spike. Spikes 3–6, distal 2–4 overlapping; lateral spikes pistillate, longest ones with (14–) 19–45 (–65) perigynia, 9–32 (–41) × 4.1–6.5 (–7.3) mm, ratio of spike length (in mm) to flower number = (0.56–) 0.67–1.1 (–1.3); terminal spikes 7–35 × (1.3–) 1.5–3 (–3.6) mm. Pistillate scales (1.6–) 2–3.2 (–3.7) × 1.5–2.2 (–2.5) mm, margins whitish, entire, apex awnless or with awn to 1 (–1.5) mm. Staminate scales 4.3–5.2 × 1–1.8 mm. Anthers 1.8–3.6 mm. Perigynia spirally imbricate, 43–54-veined, unwrinkled, oblong-ovoid, obtusely triangular in cross-section, 3.2–4 (–4.1) × 1.5–2.5 mm, (1.5–) 1.8–2.3 (–2.5) times as long as wide, dull, base very gradually tapered, apex gradually tapered; beak absent or straight, 0–0.3 mm. Achenes obovoid, 2.4–3 × 1.3–1.6 (–1.7) mm, 0.5–0.63 times as long as perigynia, loosely enveloped by perigynia; stipe straight 0.05–0.3 (–0.4) mm; beak bent (0–) 30–90°, 0.2–0.4 mm.


Phenology: Fruiting spring–early summer.
Habitat: Mesic to wet-mesic deciduous forests or seasonally moist prairies, usually in clays or loams
Elevation: 10–1900 m

Distribution

V23 841-distribution-map.jpg

Ont., Ala., Ark., Conn., Del., D.C., Ill., Ind., Ky., La., Md., Mass., Miss., Mo., N.H., N.J., N.Y., N.C., Ohio, Okla., Pa., Tenn., Tex., Vt., Va., W.Va.

Discussion

Carex glaucodea is frequent. In the southern portions of its range, it occasionally grows with and hybridizes with C. flaccosperma (see discussion under 298. C. flaccosperma).

Selected References

None.

Lower Taxa

None.

No values specified."longest" is not a number.

... more about "Carex glaucodea"
0.16 cm1.6 mm <br />0.0016 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
smaller +
1.3mm;1.6mm +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.36 cm3.6 mm <br />0.0036 m <br />) +
with awn +  and awnless +
Robert F. C. Naczi +  and Charles T. Bryson +
Tuckerman ex Olney +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
shortened +
tapered +
Griseae +
straight +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
m--shaped +
0mm;20mm +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
yellowbrown +
round +  and trigonous +
10 cm100 mm <br />0.1 m <br /> (50 cm500 mm <br />0.5 m <br />) +
Ont. +, Ala. +, Ark. +, Conn. +, Del. +, D.C. +, Ill. +, Ind. +, Ky. +, La. +, Md. +, Mass. +, Miss. +, Mo. +, N.H. +, N.J. +, N.Y. +, N.C. +, Ohio +, Okla. +, Pa. +, Tenn. +, Tex. +, Vt. +, Va. +  and W.Va. +
10–1900 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
0.67 +  and 1.1 +
biconvex +  and trigonous +
Mesic to wet-mesic deciduous forests or seasonally moist prairies, usually in clays or loams +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
0.52 cm5.2 mm <br />0.0052 m <br /> (1 cm10 mm <br />0.01 m <br />) +
with (1-)3-6(-30) bristles and/or scales +
0.4 cm4 mm <br />0.004 m <br /> (0.41 cm4.1 mm <br />0.0041 m <br />) +
yellowbrown +  and dark-brown +
(1.5-)1.8-2.3(-2.5) +
0.32 cm3.2 mm <br />0.0032 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Fruiting spring–early summer. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
Proc. Amer. Acad. Arts +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.28 cm2.8 mm <br />0.0028 m <br />) +
adventitious +
staminate +  and pistillate +
0.32 cm3.2 mm <br />0.0032 m <br /> (0.37 cm3.7 mm <br />0.0037 m <br />) +
0.22 cm2.2 mm <br />0.0022 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
0.43 cm4.3 mm <br />0.0043 m <br /> (0.52 cm5.2 mm <br />0.0052 m <br />) +
basal +  and proximal +
2-keeled +
1mm;1.8mm +
cylindric +
Illustrated +  and Endemic +
1.5 cm15 mm <br />0.015 m <br /> (3.1 cm31 mm <br />0.031 m <br />) +
0.16 cm1.6 mm <br />0.0016 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
straight +
0.005 cm0.05 mm <br />5.0e-5 m <br /> (?) +  and 0.03 cm0.3 mm <br />3.0e-4 m <br /> (?) +
deciduous +
2-3(-4)-fid +
Carex flaccosperma var. glaucodea +
Carex glaucodea +
Carex sect. Griseae +
species +
0.3 cm3 mm <br />0.003 m <br /> (0.36 cm3.6 mm <br />0.0036 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
plant +  and cespitose +
5.7mm +  and 10.8mm +