Taxon  Report   4946 
Lolium perenne  L.  (not an active name)
English rye grass,  Perennial rye grass, Perennial ryegrass
Lolium perenne
© 2009 Barry Rice
More photos from
CalPhotos / Calflora
Lolium perenne, a monocot, is a perennial grass that is not native to California; it was introduced from elsewhere and naturalized in the wild.

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
Lolium perenne
© 2008 Keir Morse
Family: POACEAE  
Genus: Lolium
Name Status:
Accepted by PLANTS + JM93
ICPN accepted name: Festuca perennis
NOTE: Lolium perenne is not an active name in the Calflora species table.
More information about  Lolium perenne
Photos on CalPhotos / Google Images
UC Integrated Pest Management Weed Photo Gallery
(profile of this plant as an agricultural weed)

Records from the Consortium of California Herbaria

ITIS Original Publication citation


Search the International Plants Names Index

Search (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:   (Accessed: May 26, 2018).

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