Carex loliacea L.

Ryegrass sedge (en)

Species

Angiosperms > Poales > Cyperaceae > Carex

Characteristics

Rhizome slender and creeping. Culms loosely tufted, 15-25 cm tall, slender, trigonous above, clothed at base with pale brown bladeless sheaths. Leaves shorter than culm, blades linear, 1-2 mm wide, flat, margins scabrous. Involucral bracts glumelike. Inflorescence with upper 2 spikes approximate, lowermost 2 distant by at least 1 cm; spikes 3 or 4, gynaecandrous, ovate, 3-5 × 2-5 mm, few flowered. Female glumes pale, broadly ovate or ovate, ca. 2 mm, membranous, with green midrib. Utricles pale green-brown, longer than glume, oblong or ovate, plano-convex, 2.5-3 mm, subleathery, many veined on both faces, base rounded, spongy, shortly stipitate, apex nearly beakless, orifice entire or emarginate. Nutlets tightly enveloped, broadly elliptic, ca. 1.5 × 1.2 mm, subrounded at both ends; style base not thickened; stigmas 2. Fr. May. 2n = 54.
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Plants loosely cespitose; rhizomes long, slender. Culms erect, weak, 15–40 cm. Leaves: sheaths pale brown abaxially, inner band tight, hyaline, truncate; ligules short, as wide as long; blades pale green, flat, 5–15 cm × 1–2 mm. Inflorescences erect, 1–2.5 cm × 4–6 mm; proximal bracts scalelike, usually 2–8 mm, shorter than spikes. Spikes 2–5, gynecandrous, the proximal remote, proximal 2 at least 1 cm apart, the distal approximate, with 3–8 perigynia, suborbicular. Pistillate scales white-hyaline with green midrib, ovate, clearly shorter than perigynia, apex obtuse. Perigynia pale green or pale brown in age, conspicuously many-veined, obovate-elliptic, 2.5–3.5 × 1.25–1.5 mm, subcoriaceous; beak absent. Achenes red-brown, oblong-elliptic, 1.75 × 1 mm, glossy. 2n = 54.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality -
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.15 - 0.33
Root system rhizome
Rooting depth (meter) -
Root diameter (meter) 0.1
Flower color
Blooming months -
Fruit color -
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture 1-4
Soil acidity -
Soil nutriment -
Hardiness (USDA) 4-9

Usage

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

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Carex loliacea unspecified picture

Distribution

Carex loliacea world distribution map, present in Belarus, Canada, China, Germany, Finland, Japan, Kazakhstan, Montenegro, Norway, Poland, Korea (Democratic People's Republic of), Romania, Russian Federation, Sweden, Ukraine, and United States of America

Conservation status

Carex loliacea threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:300720-1
WFO ID wfo-0000348426
COL ID 5XB7C
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Carex quaternaria Neskiza loliacea Carex sibirica Vignea loliacea Carex loliacea Carex tenuiflora Leptovignea loliacea