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Taxon  Report  
Iris pseudacorus  L.
Horticultural iris,   Paleyellow iris,   Yellowflag iris,   Water iris
Iris pseudacorus is a perennial herb that is not native to California.
Cal-IPC rating: limited
Siskiyou Del Norte Modoc Humboldt Shasta Lassen Trinity Plumas Tehama Butte Mendocino Glenn Sierra Yuba Lake Nevada Colusa Placer Sutter El Dorado Yolo Alpine Napa Sonoma Sacramento Mono Amador Solano Calaveras Tuolumne San Joaquin Marin Contra Costa Alameda Santa Cruz Mariposa Madera San Francisco San Mateo Merced Fresno Stanislaus Santa Clara Inyo San Benito Tulare Kings Monterey San Bernardino San Luis Obispo Kern Santa Barbara Ventura Los Angeles Riverside Orange San Diego Imperial
Observation Search
~542 records in California
redone or more occurrences
within a 7.5-minute quadrangle
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Bloom Period
Genus: Iris
Family: Iridaceae  
Category: angiosperm  
PLANTS group:Monocot
Jepson eFlora section: monocot

Toxicity: Do not eat the leaf or underground parts of this plant.

Wetlands: Occurs in wetlands

Habitat: disturbed

Communities: wetland-riparian, agricultural weed

Name Status:
Accepted by JEF + PLANTS

Information about  Iris pseudacorus from other sources

[Wikipedia] Europe, western Asia, northwest Africa native: Iris pseudacorus, the yellow flag, yellow iris, or water flag, is a species of flowering plant in the family Iridaceae. It is native to Europe, western Asia and northwest Africa. (contributed by Mary Ann Machi)


Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals. [web application]. 2024. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 04/13/2024).