Juncus biglumis L.

Twoflowered rush (en)

Species

Angiosperms > Poales > Juncaceae > Juncus

Characteristics

Herbs, perennial, loosely cespitose, 0.25--1.6 dm. Culms nearly terete. Cataphylls 2--4. Leaves basal, 1--4; sheaths loose; auricles absent or rounded, 0.5 mm; blade imperfectly septate, ascending, nearly terete, 2--7 cm x 0.5--1.5 mm. Inflorescences heads, 1--2(--4)-flowered; primary bracts much longer than inflorescence. Flowers: tepals brown to blackish, oblong, 2.5--4 mm, apex obtuse; outer and inner series nearly equal; stamens 6, filaments 1--1.5 mm, anthers 0.5--0.7 mm; style deciduous, 0.3--0.4 mm. Capsules pale with dark purplish valve margins, pseudo-3-locular, oblate to narrowly ovoid, 4--5.5 x 1.7--2.3 mm, exceeding perianth, apex retuse. Seeds yellowish tan, fusiform-ovoid, 0.7--0.9 mm, short tailed. 2n = 120.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.16 - 0.23
Root system -
Rooting depth (meter) 0.15
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 7-8
Soil texture 1-2
Soil acidity 3-8
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 -

Distribution

Juncus biglumis world distribution map, present in Austria, Canada, Finland, United Kingdom of Great Britain and Northern Ireland, Greenland, Iceland, Liberia, Mongolia, Norway, Russian Federation, Sweden, and United States of America

Conservation status

Juncus biglumis threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:442732-1
WFO ID wfo-0000775983
COL ID 3QTHX
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Juncus biglumis Juncus biglumis var. ajonskensis