Carex gracilescens

Steudel

Syn. Pl. Glumac. 2: 226. 1855.

Common names: Carex grêle
IllustratedEndemic
Synonyms: Carex laxiflora var. gracillima Boott
Treatment appears in FNA Volume 23. Treatment on page 438. Mentioned on page 432, 437.
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Culms densely tufted, ascending, lax or, occasionally, decumbent, 13–78 cm × 0.8–1 mm. Leaves: basal sheaths purple or purple tinged; sheaths 2–42 mm; blades ascending or lax, erect, green or yellow-green, midrib developed adaxially, 2 lateral veins abaxially, 19–38 cm × 1–5 mm, blades of overwintering leaves smooth. Inflorescences: peduncles proximal pistillate spikes to 11 cm, distal spike sessile; staminate spike 0.5–10.6 cm. Bracts 0.5–11.2 cm × 0.5–4 mm, angles of bract sheath denticulate; bract blade of distal lateral spikes linear, narrower than spikes, not concealing them; widest bract blade of distalmost lateral spike 0.5–3.4 mm wide. Spikes (3–)4(–5) per culm; lateral spikes 5–27 × 3–4 mm; internode between proximal scales in proximal spike 1.1–3.2(–4.8) mm; terminal spike linear, 11–21 × 1–2.2 mm. Pistillate scales 2.8–3 × 1–1.2 mm, apex acute to aristate, awn to 1 mm. Staminate scales 3.5–4 × 1.2–1.5 mm, margins hyaline, purple-brown or brownish purple tinged, apex acute. Anthers 2.6–3 mm. Perigynia 4–12 per spike, closely overlapping, aggregated, ascending, conspicuously (22–)25–32-veined, elliptic-obovate, 2.8–3 × 1.5–1.8 mm, 1.8–2.7 times long as wide; beak abruptly bent, 0.2–0.8 mm. Achenes obovoid, 2.6–2.8 × 1.3–1.6 mm. 2n = 33, 38, 40.


Phenology: Fruiting spring.
Habitat: Moist to dry deciduous or mixed deciduous-evergreen forests or woodland edges in partial shade, frequently on limestone or chalk, on clay or marl soils, stream bottoms or on steep slopes
Elevation: 0–600 m

Distribution

V23 804-distribution-map.jpg

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

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Carex gracilescens"
Charles T. Bryson +  and Robert F. C. Naczi +
Steudel +
Laxiflorae +
Carex grêle +
Ont. +, Ala. +, Ark. +, Conn. +, Del. +, D.C. +, Fla. +, Ga. +, Ill. +, Ind. +, Ky. +, Md. +, Mass. +, Mich. +, Miss. +, Mo. +, N.H. +, N.J. +, N.Y. +, N.C. +, Ohio +, Okla. +, Pa. +, Tenn. +, Tex. +, Va. +, W.Va. +  and Wis. +
0–600 m +
Moist to dry deciduous or mixed deciduous-evergreen forests or woodland edges in partial shade, frequently on limestone or chalk, on clay or marl soils, stream bottoms or on steep slopes +
Fruiting spring. +
Syn. Pl. Glumac. +
Illustrated +  and Endemic +
Carex laxiflora var. gracillima +
Carex gracilescens +
Carex sect. Laxiflorae +
species +