Carex leptalea Wahlenb.

Little bog sedge (en), Carex à tiges grêles (fr)

Species

Angiosperms > Poales > Cyperaceae > Carex

Characteristics

Stems densely clustered on slender, freely branched rhizomes, very slender, 1.5–6 dm; lvs shorter than the stems, slender but ± flat, 0.7–1.2 mm wide; spike 1, 0.5–1.5 cm, the terminal staminate part often short; pistillate scales obtuse to acute or short-awned, mostly shorter than the perigynia, or the lowest prolonged into a slender tip surpassing the perigynia; perigynia 1–10, 2.5–4.5 mm, appressed-ascending, often rather remote, membranaceous, elliptic or lance-elliptic, with a narrow, often substipitate, spongy base 0.5–1 mm, beakless, with 2 marginal nerves and many finer nerves on each face; achene trigonous, 1.3–1.8 mm, not filling the perigynium; rachilla wanting; 2n=52. Bogs and wet soil; Lab. to Alas., s. to Fla., Tex., and Calif. (C. harperi, a form with the perigynia to 5 mm)
More
Rhizomes freely branched, often mat-forming, 0.6–1.6 mm in diam. Culms loosely erect, capillary, 10–70 cm. Leaf blades 1–2 per culm, lax, ± flat, 1–25 cm × 0.4–1.3 mm, soft. Spike oblong to narrowly oblong, 4–15(–18) × 2–4 mm, with 2–7 staminate flowers and 2–9(–13) pistillate flowers; staminate portion often short or occupying nearly entire spike. Pistillate scales 1/2 as long as perigynia, proximal scales sometimes exceeding perigynia or spike. Staminate scales almost hood-shaped, tightly clasping rachis. Perigynia slightly to strongly overlapping, with 2 marginal and 16–28 finer veins (plus others more faint), 2.4–4.9(–5.4) × 0.8–1.3 mm. Achenes oblong-ovoid, 1.3–1.9 × 0.7–1.2 mm. 2n = 50, 52.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality -
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.5
Root system fibrous-root rhizome
Rooting depth (meter) 0.2
Root diameter (meter) -
Flower color -
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Light 2-5
Soil humidity 7-9
Soil texture -
Soil acidity 2-6
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

Carex leptalea unspecified picture

Distribution

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

Conservation status

Carex leptalea threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:300629-1
WFO ID wfo-0000348289
COL ID 5XBFJ
BDTFX ID -
INPN ID 761913
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Carex leptalea Carex microstachya Carex leptalea var. leptalea

Lower taxons

Carex leptalea subsp. harperi Carex leptalea subsp. leptalea Carex leptalea subsp. pacifica