Carex pauciflora Lightf.

Fewflower sedge (en), Carex pauciflore (fr), Laîche pauciflore (fr), Laîche à fleurs peu nombreuses (fr)

Species

Angiosperms > Poales > Cyperaceae > Carex

Characteristics

Rhizomes 0.2–10 cm, 0.6–1.2 mm in diam. Culms arising singly or in loose tufts of 2–6(–12), 10–40(–60) cm, apically slightly scabrous. Leaves: proximal 1–4 reduced to bladeless or nearly bladeless sheaths; foliage leaves 1–2(–3) per culm; ligules about as wide as long; blades mostly 1–3 (proximal blade) or 5–13 (distal) cm × 0.5–1.6 mm. Spike consisting of slender terminal cone of (1–)2–4 staminate flowers and (1–)2–6(–7) pistillate flowers, 3–10 (often 5–8) × 2–8 (immature fruit) or to 17 (mature fruit) mm. Pistillate scales 3.7–5.9 mm, wider than and 2/3 length of perigynia. Staminate scales closely appressed. Perigynia light green, becoming straw colored or pale brown, lance-subulate to narrowly elongate-oblong, (5–)5.9–7.8 × 0.7–1.1 mm, long-tapering; beak indistinct; rachilla vestigial. Achenes 2–2.4 × 0.8–1 mm; style exserted 0.2–1.3 mm beyond orifice of beak. 2n = ca. 74, 76.
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Stems solitary or few together from long slender rhizomes, 1–4 dm, aphyllopodic; main lvs 1–2 mm wide, shorter than the culm; spike 1, bractless, to 1 cm; staminate scales closely infolded into a slender terminal cone; pistillate scales lanceolate, 4–6 mm, pale brown, soon deciduous; perigynia few, mostly 1–6, soon deflexed, deciduous at maturity, light green, becoming stramineous or pale brown, finely several-nerved, 6–7.5 mm, slender and long-tapering, spongy at base, nearly round in section; achene trigonous, not filling the perigynium, continuous with the exserted, persistent style; rachilla obsolete; 2n=46, 76. Sphagnum-bogs; circumboreal, s. to Conn., Pa., W.Va., Mich., Minn., and Wash.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality monoecy
Pollination anemogamy
Spread epizoochory
Mature width (meter) -
Mature height (meter) 0.08 - 0.3
Root system fibrous-root rhizome
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Light 4-9
Soil humidity 5-9
Soil texture 1-4
Soil acidity 1-8
Soil nutriment -
Hardiness (USDA) 7-10

Usage

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

Cultivation

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

Images

Fruit

Carex pauciflora fruit picture by Genghis Attenborough (cc-by-sa)
Carex pauciflora fruit picture by Genghis Attenborough (cc-by-sa)
Carex pauciflora fruit picture by Alain Lagrave (cc-by-sa)

Distribution

Carex pauciflora world distribution map, present in Austria, Belarus, Canada, Switzerland, Czech Republic, Germany, Denmark, Finland, France, Micronesia (Federated States of), Ireland, Italy, Japan, Kazakhstan, Malaysia, Norway, Poland, Korea (Democratic People's Republic of), Romania, Russian Federation, Sweden, Ukraine, and United States of America

Conservation status

Carex pauciflora threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:301464-1
WFO ID wfo-0000349841
COL ID 5XD2M
BDTFX ID 14220
INPN ID 88762
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Anithista patula Carex pauciflora Leucoglochin pauciflorus Carex phyllophora Carex pauciflora f. elatior Carex leucoglochin Carex patula Psyllophora pauciflora Caricinella pauciflora Trasus pauciflorus