Calflora
Taxon  Report   4483    
Juncus nodosus  L.
Knotted rush
Juncus nodosus
© 2010 Louis-M. Landry
Photos from
CalPhotos / Calflora
Juncus nodosus, a monocot, is a perennial grasslike herb (rhizomatous) that is native to California, is also found elsewhere in North America and beyond.
CNPS Rare Plant Rank: 2B.3 (rare, threatened, or endangered in CA; common elsewhere).   8th Edition

Interactive Distribution Map


Observation Hotline
(observation details + photos)



point, line, or polygon

one or more occurrences
within a 7.5-minute quadrangle

Plant Characteristics
and Associations



Bloom Period
Juncus nodosus
© 2005 James M. Andre
Family: JUNCACEAE  
Genus: Juncus
Communities: Freshwater Wetlands, wetland-riparian

Wetlands: Occurs in wetlands

Habitat: lake-margins, meadows, edges

Name Status:
Accepted by JEF + CNPS + PLANTS

Alternate Names:
ICPN: Juncus nodosus var. nodosus
More information about  Juncus nodosus
Nursery / seed vendor availability from CNPLX
Commercial availability unknown.
Landscaping information from Calscape
Photos on Google Images
Jepson eFlora

Records from the Consortium of California Herbaria

ITIS Original Publication citation

USDA PLANTS Profile (JUNO2)

Search the International Plants Names Index

Search efloras.org (Flora of North America)

website references from Google


Suggested Citation
Calflora: Information on California plants for education, research and conservation,
with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria.
[web application]. 2018. Berkeley, California: The Calflora Database [a non-profit organization].
Available: https://www.calflora.org/   (Accessed: Nov 14, 2018).

The information on this page comes from diverse sources. None of the links are sponsored.