Carex grayi

J. Carey

Amer. J. Sci. Arts, ser. 2, 4: 22. 1847.

Common names: Carex de Gray
IllustratedEndemic
Basionym: Carex intumescens var. globularis A. Gray Ann. Lyceum Nat. Hist. New York 3: 236. 1835
Treatment appears in FNA Volume 23. Treatment on page 512. Mentioned on page 511, 513.

Plants cespitose or not, short-rhizomatous. Culms solitary or not, erect, (25–) 40–90 (–110) cm. Leaves 6–12; basal sheaths purplish red; sheath of distal leaf 0–1.5 (–2.5) cm; ligules rounded, 2.5–6 mm; blades 12–34 cm × 4–11 mm. Inflorescences 2.5–17 cm; peduncles of proximal pistillate spikes 0.7–3.5 cm, basal 2 peduncles 1–4 (–12) cm apart; peduncle of terminal spike 0.5–6 cm; bracts leafy, usually sheathless, blades 8–26 cm × 2–7 mm. Spikes: proximal pistillate spikes 1–2 (–3), densely (4–) 8–35-flowered, separate to aggregated, globular, 2.5–4.2 × 2.6–4.1 cm; terminal staminate spike 1, 0.5–6.5 cm × 1–4 mm. Pistillate scales 1–5-veined, lanceolate-ovate to ovate-orbicular, 4–11 × 2–4.2 mm, apex obtuse to awned, awn to 7 mm, rough. Anthers 3, 2.5–4.8 mm. Perigynia radiating out in all directions, strongly 16–25-veined, rhombic-ovoid, 12.5–20 × 4–8 mm, base cuneate, dull, glabrous or, sometimes, hispidulous; beak poorly defined, 1.5–3 mm. Achenes sessile, ellipsoid to obovoid, faces convex, angles not thickened, 3.3–4.8 × 2.6–3.7 mm; style withering.


Phenology: Fruiting May–Aug.
Habitat: Mesic to wet deciduous forests, forest openings, usually on fine alluvial or lacustrine deposits, riverbottoms
Elevation: 0–500 m

Distribution

V23 954-distribution-map.jpg

Ont., Que., Ala., Ark., Conn., Del., D.C., Fla., Ga., Ill., Ind., Iowa, Kans., Ky., Md., Mass., Mich., Minn., Miss., Mo., N.Y., N.C., Ohio, Okla., Pa., S.C., Tenn., Vt., Va., Wis.

Discussion

Pubescence on the perigynia of Carex grayi is most frequently found in plants from the Midwest and South.

Selected References

None.

Lower Taxa

None.
... more about "Carex grayi"
ellipsoid;obovoid +
smaller +
0.33 cm3.3 mm <br />0.0033 m <br /> (0.48 cm4.8 mm <br />0.0048 m <br />) +
not thickened +
2.6mm;3.7mm +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.48 cm4.8 mm <br />0.0048 m <br />) +
hairy +  and glabrous +
A. A. Reznicek +
J. Carey +
0 cm0 mm <br />0 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
shortened +
hispidulous +, , +  and glabrous +
cuneate +
Carex intumescens var. globularis +
bidentate +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
8 cm80 mm <br />0.08 m <br /> (26 cm260 mm <br />0.26 m <br />) +
v--shaped +
2mm;7mm +
sheathless +  and leafy +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
Carex de Gray +
brown +, reddish +  and purplish +
round +  and trigonous +
40 cm400 mm <br />0.4 m <br /> (90 cm900 mm <br />0.9 m <br />) +
prophyllate +, pedunculate +  and staminate +
Ont. +, Que. +, Ala. +, Ark. +, Conn. +, Del. +, D.C. +, Fla. +, Ga. +, Ill. +, Ind. +, Iowa +, Kans. +, Ky. +, Md. +, Mass. +, Mich. +, Minn. +, Miss. +, Mo. +, N.Y. +, N.C. +, Ohio +, Okla. +, Pa. +, S.C. +, Tenn. +, Vt. +, Va. +  and Wis. +
0–500 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Mesic to wet deciduous forests, forest openings, usually on fine alluvial or lacustrine deposits, riverbottoms +
2.5 cm25 mm <br />0.025 m <br /> (17 cm170 mm <br />0.17 m <br />) +
septate-nodulose +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
1.5 cm15 mm <br />0.015 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
0 cm0 mm <br />0 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
4 cm40 mm <br />0.04 m <br /> (12 cm120 mm <br />0.12 m <br />) +
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
with (1-)3-6(-30) bristles and/or scales +
1.25 cm12.5 mm <br />0.0125 m <br /> (2 cm20 mm <br />0.02 m <br />) +
ascending +  and spreading +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Fruiting May–Aug. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
Amer. J. Sci. Arts, ser. +
adventitious +
1-5-veined +  and pistillate +
0.4 cm4 mm <br />0.004 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
basal +  and proximal +
lanceolate-ovate;ovate-orbicular +
2mm;4.2mm +
shorter or longer +
septate-nodulose +
0 cm0 mm <br />0 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Illustrated +  and Endemic +
(4-)8-35-flowered +  and pistillate +
separate +  and aggregated +
2.5 cm25 mm <br />0.025 m <br /> (4.2 cm42 mm <br />0.042 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (6 cm60 mm <br />0.06 m <br />) +
globular +
0.7 cm7 mm <br />0.007 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
2.6 cm26 mm <br />0.026 m <br /> (4.1 cm41 mm <br />0.041 m <br />) +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
persistent +
2-3(-4)-fid +
Carex grayi +
Carex sect. Lupulinae +
species +
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
plant +, not +  and cespitose +