Taxon  Report   4358 
Iris pseudacorus  L.
Horticultural iris,  Paleyellow iris, Water iris
Iris pseudacorus
© 2014 Dr. Amadej Trnkoczy
Click on a photo to see it bigger.
Iris pseudacorus
© 2014 Dr. Amadej Trnkoczy
Iris pseudacorus
© 2001 Nick Kurzenko
Iris pseudacorus, a monocot, is a perennial herb that is not native to California; it was introduced from elsewhere and naturalized in the wild.
It is an invasive plant. The California Invasive Plant Council classifies its potential impact on native ecosystems as limited (plant profile / CalWeedMapper).

Interactive Distribution Map

Observation Hotline
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point, line, or polygon

one or more occurrences
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Plant Characteristics
and Associations

Bloom Period
Iris pseudacorus
© 2004 Nick Kurzenko
Genus: Iris
agricultural weed, wetland-riparian
Habitat: disturbed [Walker]
Wetlands:Occurs almost always under natural conditions in wetlands [U.S. Fish & Wildlife Service.]
Toxicity: MINOR, DERMATITIS   [California Poison Control System 2010]    
Name Status:
Accepted by TJM2 + PLANTS + JM93
More information about  Iris pseudacorus
Photos on CalPhotos / Google Images
Jepson eFlora

Records from the Consortium of California Herbaria

Original Publication citation (ITIS)


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]. 2016. Berkeley, California: The Calflora Database [a non-profit organization].
Available:   (Accessed: Oct 22, 2016).

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