Carex gravida

L. H. Bailey

Mem. Torrey Bot. Club 1: 5. 1889.

IllustratedEndemic
Synonyms: Carex lunelliana Mackenzie
Treatment appears in FNA Volume 23. Treatment on page 296. Mentioned on page 286, 297.

Plants without conspicuous rhizomes. Culms (20–) 30–100 cm, 2.5–8 mm wide basally, 0.7–1.6 mm wide distally. Leaves: sheaths usually loose, proximally green-and-white-striped, not white spotted, with conspicuous transverse veins on back, fronts hyaline, sometimes transversely rugose and red dotted, thin, white or hyaline and fragile at mouth; ligules 2–7 mm, shorter to longer than wide; widest leaf-blades (3–) 4–8 mm wide. Inflorescences with 5–15 spikes, 1–5 cm × 8–15 mm, occasionally compound, then somewhat larger; proximal bracts to 3 cm; spikes with 5–15 ascending to spreading perigynia; proximal internodes shorter than to 1.5 times as long as proximal spikes. Pistillate scales hyaline or brown with green, 1–3-veined center, ovate, 2.6–4.4 × 1.3–2.4 mm, body shorter to slightly longer than perigynium, apex acuminate to short-awned. Anthers 1.5–3 mm. Perigynia pale green to pale-brown, veinless or 3–7 (–12) -veined abaxially, rarely veined adaxially, 3.5–5.5 × 2–3 mm, body somewhat spongy, base thickened, margins serrulate distally; beak 0.6–1.6 mm, apical teeth 0.3–1 mm. Achenes circular to elliptic circular, 1.8–2.1 × 1.6–2 mm.


Phenology: Fruiting late spring.
Habitat: Prairies, ditches, swales, open forests, usually on calcareous soils
Elevation: 100–1400 m

Distribution

V23 512-distribution-map.jpg

Man., Ont., Sask., Ark., Colo., Ill., Ind., Iowa, Kans., Ky., Mich., Minn., Mo., Mont., Nebr., N.Mex., N.C., N.Dak., Ohio, Okla., Pa., S.Dak., Tenn., Tex., Va., Wis., Wyo.

Discussion

Carex gravida is introduced in North Carolina.

Selected References

None.

Lower Taxa

None.
... more about "Carex gravida"
circular +  and elliptic +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.21 cm2.1 mm <br />0.0021 m <br />) +
biconvex +
smaller +
1.6mm;2mm +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Peter W. Ball +
L. H. Bailey +
shortened +
white-hyaline +, hyaline +  and narrow +
red tinged +  and brown +
rounded +
bidentate +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.16 cm1.6 mm <br />0.0016 m <br />) +
v--shaped +
0mm;20mm +
slightly longer +
shorter to slightly +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
0.26 cm2.6 mm <br />0.0026 m <br /> (0.44 cm4.4 mm <br />0.0044 m <br />) +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.24 cm2.4 mm <br />0.0024 m <br />) +
round +  and trigonous +
30 cm300 mm <br />0.3 m <br /> (100 cm1,000 mm <br />1 m <br />) +
0.7mm;1.6mm +
Man. +, Ont. +, Sask. +, Ark. +, Colo. +, Ill. +, Ind. +, Iowa +, Kans. +, Ky. +, Mich. +, Minn. +, Mo. +, Mont. +, Nebr. +, N.Mex. +, N.C. +, N.Dak. +, Ohio +, Okla. +, Pa. +, S.Dak. +, Tenn. +, Tex. +, Va. +, Wis. +  and Wyo. +
100–1400 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
hyaline +, white +  and red dotted +
biconvex +  and trigonous +
Prairies, ditches, swales, open forests, usually on calcareous soils +
, +  and racemose +
sessile +  and pistillate +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
shorter to longer than wide +
0.2 cm2 mm <br />0.002 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
with (1-)3-6(-30) bristles and/or scales +
veined +, 3-7(-12)-veined +  and veinless +
pale green +  and pale-brown +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
ascending +  and spreading +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Fruiting late spring. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
0 cm0 mm <br />0 m <br /> (3 cm30 mm <br />0.03 m <br />) +
Mem. Torrey Bot. Club +
adventitious +
brown with green +  and hyaline +
basal +  and proximal +
2-keeled +
cylindric +
Illustrated +  and Endemic +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +
2-3(-4)-fid +
Carex lunelliana +
Carex gravida +
Carex sect. Phaestoglochin +
species +
conspicuous +
rhizomatous +  and short-rhizomatous +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +