Carex albolutescens Schwein.

Greenwhite sedge (en)

Species

Angiosperms > Poales > Cyperaceae > Carex

Characteristics

Plants densely cespitose. Culms 25–120 cm; vegetative culms inconspicuous with few leaves clustered at apex. Leaves: sheaths conspicuously green-veined adaxially nearly to apex, narrow hyaline band or sharp Y-shaped region at collar, adaxially firm, summits U-shaped, not prolonged; distal ligules 1.5–4.5 mm; blades 3–5 per fertile culm, 9–25 cm × 2–3.5 mm. Inflorescences erect, open, yellow-green to brown, 1.5–4 cm × 4–12 mm; proximal internode 3–12 mm; 2d internode 3–9 mm; proximal bracts scalelike, with bristle tips, shorter than inflorescences. Spikes 2–8, distinct, ellipsoid to globose, 5–13 × 4–6.5 mm, base acute, apex rounded; staminate portion of well-developed spikes less than 2 mm. Pistillate scales white-hyaline or brown, with green midstripe, broadly lanceolate or ovate, 2.5–3.4 mm, longer and narrower than perigynia, apex acute. Perigynia spreading, green to light brown, conspicuously 4–many-veined on each face, winged to base, obovate, flat except over achene or somewhat plano-convex, 2.6–4.5 × 1.5–2.7 mm, 0.3–0.45 mm thick, margin flat, including wing 0.4–0.7 mm wide; beak pale brown at tip, flat, ciliate-serrulate, abaxial suture with white or brown hyaline margin, distance from beak tip to achene 1–2 mm. Achenes oblong, 1.3–1.7 × 0.75–1 mm, 0.3–0.4 mm thick; styles laterally sinuate. 2n = 66.
More
Much like no. 84 [Carex longii Mack]., but the perigynium-beak more slender, spreading, its winged margins not reaching the tip; pistillate scales distally flat and acute, the midrib reaching the tip; style laterally flexuous; 2n=66. Swamps and low woods and thickets; Mass. to Ga., w. to s. Mich., s. Ill., s. Mo., La., and Tex. (C. straminea, misapplied)
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality -
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 1.2
Root system fibrous-root
Rooting depth (meter) 0.4
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Light 5-6
Soil humidity 5-5
Soil texture -
Soil acidity 2-7
Soil nutriment -
Hardiness (USDA) 4-9

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by cuttings or seedlings.
Mode cuttings seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Leaf

Carex albolutescens leaf picture by Kendra RaiderNature (cc-by-sa)

Distribution

Carex albolutescens world distribution map, present in Åland Islands, Micronesia (Federated States of), Georgia, Malaysia, Nicaragua, United States of America, and Venezuela (Bolivarian Republic of)

Identifiers

LSID urn:lsid:ipni.org:names:298481-1
WFO ID wfo-0000344288
COL ID 69BHS
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Carex albolutescens Carex foenea Carex alata var. ferruginea Carex albolutescens var. ferruginea Carex foenea var. ferruginea Carex straminea var. chlorostachys Carex straminea var. ferruginea Carex straminea var. intermedia Carex festucacea var. ferruginea Carex straminea var. foenea Carex albolutescens var. brunnea Carex albolutescens var. sparsiflora