Taxon  Report   4946 
Lolium perenne  L.   (not an active name; please see Festuca perennis)
English rye grass,  Perennial Rye Grass, Perennial Ryegrass
Lolium perenne, a monocot, is a perennial herb that is not native to California; it was introduced from elsewhere and naturalized in the wild.
The California Invasive Plant Council classifies its potential impact on native ecosystems as moderate   (plant profile / CalWeedMapper).

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Lolium perenne
© 2008 Keir Morse
Lolium perenne
© 2009 Barry Rice
Wetlands:Equally likely to occur in wetlands or non wetlands [U.S. Fish & Wildlife Service.]
Family: POACEAE  
Genus: Lolium
Add an Observation of  Lolium perenne
Name Status:
Accepted by PLANTS + JM93
TJM2: accepted name: Festuca perennis
 NOTE: Lolium perenne is not an active name in the Calflora species table.
 Information about  Lolium perenne  from other sources:

Photos on CalPhotos / Google Images

website references on Google

UC Integrated Pest Management Weed Photo Gallery
(profile of this plant as an agricultural weed)

Original Publication citation. on the International Plants Names Index

Search (Flora of North America)

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]. 2015. Berkeley, California: The Calflora Database [a non-profit organization].
Available:   (Accessed: Apr 01, 2015).

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

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