Calflora, a 501c3 non-profit
Distribution by County   1026    
Azolla filiculoides  Lam.
American water fern, mosquito fern,   Mosquito fern,   Pacific mosquitofern
Azolla filiculoides is a fern that is native to California.
Record Count by County

Alameda: 22 Madera: 4 Sacramento: 41 Shasta: 9
Butte: 39 Marin: 36 San Benito: 46 Solano: 9
Colusa: 3 Mendocino: 21 San Bernardino: 22 Sonoma: 47
Contra Costa: 22 Merced: 7 San Diego: 67 Stanislaus: 5
Fresno: 13 Mono: 6 San Francisco: 9 Sutter: 1
Glenn: 3 Monterey: 27 San Joaquin: 11 Tehama: 7
Humboldt: 5 Napa: 7 San Luis Obispo: 45 Tulare: 7
Inyo: 4 Nevada: 3 San Mateo: 29 Ventura: 20
Kern: 20 Orange: 34 Santa Barbara: 32 Yolo: 10
Lake: 4 Placer: 5 Santa Clara: 8 Yuba: 2
Los Angeles: 53 Riverside: 20 Santa Cruz: 16

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]. 2024. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 11/21/2024).