Juncus gymnocarpus Coville

Pennsylvania rush (en)

Species

Angiosperms > Poales > Juncaceae > Juncus

Characteristics

Herbs, perennial, 5--10 dm. Rhizomes widely creeping, 2--4 mm diam. Culms terete, 1.5--2.5 mm diam. Cataphylls several. Leaves: blade absent. Inflorescences 8--30(--50)-flowered, open, 1.5--4 cm; primary bract terete, 1--2.5 dm, much longer than inflorescence. Flowers pedicellate; bracteoles broadly ovate; tepals light brown, ovate-lanceolate, 1.8--2.5 mm, apex acuminate; inner series shorter, margins scarious, apex acute; stamens 6, filaments 1--1.3 mm, anthers 0.5--0.7 mm; style 0.5 mm. Capsules reddish tan to brown, lustrous, 3-locular, widely ellipsoid, 2--3 x 1.8--2.2 mm, exceeding perianth. Seeds dark amber, obovoid, 0.7--1 mm, not tailed.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.5 - 1.0
Root system rhizome
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light 4-9
Soil humidity 5-7
Soil texture 1-2
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 -

Distribution

Juncus gymnocarpus world distribution map, present in United States of America

Identifiers

LSID urn:lsid:ipni.org:names:132151-2
WFO ID wfo-0000776578
COL ID 3QTRY
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Juncus gymnocarpus Juncus smithii