Calflora, a 501c3 non-profit
Distribution by County   6501    
Pilularia americana  A. Braun
American pillwort
Pilularia americana is a fern that is native to California, and also found elsewhere in North America and beyond.
Record Count by County

Alameda: 3 Madera: 4 Riverside: 22 Sonoma: 3
Butte: 56 Marin: 7 Sacramento: 30 Stanislaus: 2
Calaveras: 2 Mariposa: 1 San Benito: 2 Sutter: 3
Colusa: 2 Mendocino: 4 San Bernardino: 4 Tehama: 14
Contra Costa: 8 Merced: 14 San Diego: 59 Tulare: 5
El Dorado: 3 Modoc: 1 San Joaquin: 4 Tuolumne: 3
Fresno: 3 Mono: 1 San Luis Obispo: 18 Ventura: 8
Glenn: 1 Monterey: 12 Santa Barbara: 9 Yolo: 13
Kern: 1 Napa: 6 Santa Clara: 1 Yuba: 4
Lake: 4 Orange: 10 Santa Cruz: 2
Lassen: 3 Placer: 10 Sierra: 3
Los Angeles: 4 Plumas: 3 Solano: 19

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: 12/03/2024).