Juncus ranarius Songeon & E.P.Perrier

Jonc ambigu (fr)

Species

Angiosperms > Poales > Juncaceae > Juncus

Characteristics

Plants annual, 4--12 cm tall. Stems usually many, erect or ascending, often weak. Leaves basal and cauline; leaf blade flat and margin convolute to subterete, 1.5--5 cm × 0.5--1 mm; leaves below inflorescence 1--4. Inflorescences of capitate clusters or occasionally lax; involucral bract leaflike. Bracteoles 2, broadly ovate, 1.5--2 × ca. 1.5 mm. Perianth segments whitish, lanceolate; outer segments 3--5 × 1--1.4 mm, center green and thick, margin membranous, apex acute; inner segments 2.8--3.3 × 0.3--1.2 mm, mostly scarious, apex obtuse to rarely acute. Stamens 6; filaments 0.8--1.3 mm; anthers 0.3--0.7 mm. Style absent; stigmas ca. 0.5 mm. Capsule trigonous ellipsoid, 2.9--4 mm, slightly longer than inner perianth segments, apex obtuse. Seeds broadly ellipsoid to ovoid, 0.4--0.5 mm, base and apex obtuse. Fl. May--Jun, fr. Jul--Sep. 2 n = 34.
Life form annual
Growth form herb
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination anemogamy
Spread epizoochory
Mature width (meter) -
Mature height (meter) 0.04 - 0.12
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Light 4-9
Soil humidity 5-7
Soil texture 2-4
Soil acidity 1-5
Soil nutriment -
Hardiness (USDA) 4-9

Usage

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

Cultivation

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

Images

Juncus ranarius unspecified picture

Distribution

Juncus ranarius world distribution map, present in Albania, Armenia, Austria, Azerbaijan, Belgium, Bulgaria, Belarus, Canada, Switzerland, China, Czech Republic, Germany, Denmark, Spain, Estonia, Finland, France, United Kingdom of Great Britain and Northern Ireland, Georgia, Croatia, Hungary, Iceland, Italy, Kazakhstan, Kyrgyzstan, Liberia, Lithuania, Latvia, Mongolia, Netherlands, Norway, Poland, Portugal, Romania, Russian Federation, Saint Pierre and Miquelon, Sweden, Tajikistan, Turkmenistan, Ukraine, United States of America, Uzbekistan, and South Africa

Identifiers

LSID urn:lsid:ipni.org:names:443410-1
WFO ID wfo-0000777150
COL ID 6NH76
BDTFX ID 36661
INPN ID 104306
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Juncus ranarius Tenageia ranaria Juncus ambiguus Juncus nastanthus Juncus nastanthus Juncus ambiguus var. ossoraicus Juncus bufonius var. fasciculatus Juncus bufonius var. halophilus Juncus bufonius subsp. ranarius Juncus bufonius var. ranarius Juncus hybridus subsp. nastanthus Juncus ranarius var. ossoraicus Juncus mutabilis var. ranarius Juncus hybridus var. nastanthus Juncus bufonius subsp. nastanthus Juncus bufonius subsp. nastanthus