Carex lucorum

Willdenow ex Link

Enum. Hort. Berol. Alt. 2: 380. 1822.

Common names: Carex des forêts
IllustratedEndemic
Treatment appears in FNA Volume 23. Treatment on page 545. Mentioned on page 534.

Plants loosely cespitose; rhizomes horizontally spreading, pale-brown to reddish-brown, (5–) 20–80 mm, slender. Culms 7–55 cm, scabrous distally; bases (remnants of old leaves) fibrous. Leaf-blades pale to dark green, 0.7–3.6 mm wide, herbaceous, papillose to scabrous abaxially, papillose to scabrous adaxially, blades of distal cauline leaves poorly developed. Inflorescences with both staminate and pistillate spikes; peduncles of staminate spikes 0.7–13 mm; proximal nonbasal bracts leaflike, shorter than inflorescences. Spikes: proximal pistillate spikes 1–3 (basal spikes 0); cauline spikes overlapping or somewhat separated, with (2–) 3–13 perigynia; staminate spikes 8–22.5 × 1.4–4.6 mm. Scales: pistillate scales pale or usually dark reddish-brown, with narrow white margins, ovate to lanceolate, 2.7–4.3 × 0.8–2.4 mm, apex acute to long-acuminate; staminate scales obovate to lanceolate, 3.7–6.1 × 1–1.4 mm, obtuse to acute or acuminate. Anthers 1.9–4.6 mm. Perigynia yellowish green to pale olive, veinless, obovoid, 2.7–4.6 × 1.2–1.7 mm, as long as wide; beak straight, pale green to olive, occasionally with reddish-brown tinge near apex, 0.9–1.6 mm, weakly ciliate-serrulate, apical teeth 0.1–0.6 mm. Stigmas 3. Achenes dark-brown, obovoid to globose, obtusely trigonous in cross-section, 1.3–2.2 × 0.9–1.6 mm.

Distribution

V23 1031-distribution-map.jpg

N.B., N.S., Ont., Que., Conn., Ga., Ky., Maine, Mass., Mich., Minn., N.C., N.H., N.J., N.Y., Pa., R.I., S.C., Tenn., Va., Vt., Wis.

Discussion

Varieties 2 (2 in the flora).

Selected References

None.

Key

1 Leaves usually 1.5+ mm wide; northeastern North America. Carex lucorum var. lucorum
1 Leaves usually less than 1.5 mm wide; Appalachian Mountains of southern Virginia to Georgia. Carex lucorum var. austrolucorum

No values specified.

... more about "Carex lucorum"
0.13 cm1.3 mm <br />0.0013 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
trigonous;obovoid;globose +
0.9mm;1.6mm +
0.19 cm1.9 mm <br />0.0019 m <br /> (0.46 cm4.6 mm <br />0.0046 m <br />) +
beaked +, awned +  and cuspidate +
reddish-brown tinge +
glabrous +  and pubescent +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
William J. Crins +  and Jeff H. Rettig +
Willdenow ex Link +
shortened +
rounded +  and tapering +
ciliate-serrulate +
straight +
bidentate +  and bent +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.16 cm1.6 mm <br />0.0016 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 +
separated +  and overlapping +
Carex des forêts +
brown +  and red +
round +  and trigonous +
7 cm70 mm <br />0.07 m <br /> (55 cm550 mm <br />0.55 m <br />) +
N.B. +, N.S. +, Ont. +, Que. +, Conn. +, Ga. +, Ky. +, Maine +, Mass. +, Mich. +, Minn. +, N.C. +, N.H. +, N.J. +, N.Y. +, Pa. +, R.I. +, S.C. +, Tenn. +, Va. +, Vt. +  and Wis. +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
prophyllate +, pedunculate +, staminate +, , +  and pistillate +
pale +  and dark green +
papillose;scabrous abaxially +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.36 cm3.6 mm <br />0.0036 m <br />) +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
with (1-)3-6(-30) bristles and/or scales +
yellowish green +  and pale olive +
0.27 cm2.7 mm <br />0.0027 m <br /> (0.46 cm4.6 mm <br />0.0046 m <br />) +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
scale-like +  and filiform +
Enum. Hort. Berol. Alt. +
0.5 cm5 mm <br />0.005 m <br /> (2 cm20 mm <br />0.02 m <br />) +
pale-brown +  and reddish-brown +
2 cm20 mm <br />0.02 m <br /> (8 cm80 mm <br />0.08 m <br />) +
adventitious +
staminate +  and pistillate +
dark reddish-brown +  and pale +
0.37 cm3.7 mm <br />0.0037 m <br /> (0.61 cm6.1 mm <br />0.0061 m <br />) +
basal +  and proximal +
obtuse;acute or acuminate +
1mm;1.4mm +
cylindric +
Illustrated +  and Endemic +
staminate +  and pistillate +
0.8 cm8 mm <br />0.008 m <br /> (2.25 cm22.5 mm <br />0.0225 m <br />) +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
0.14 cm1.4 mm <br />0.0014 m <br /> (0.46 cm4.6 mm <br />0.0046 m <br />) +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +
2-3(-4)-fid +
Carex sect. Montanae +
Carex lucorum +
Carex sect. Acrocystis +
species +
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 +