Calflora, a 501c3 non-profit
Distribution by County   7027    
Ranunculus aquatilis  L.  var. hispidulus  Drew

(not an active name)
White water crowfoot
Ranunculus aquatilis var. hispidulus is a perennial herb (aquatic) that is native to California.
also called Ranunculus aquatilis var. aquatilis
Record Count by County

Alameda: 13 Lassen: 34 Riverside: 15 Solano: 4
Alpine: 8 Los Angeles: 3 Sacramento: 15 Sonoma: 18
Amador: 4 Madera: 4 San Benito: 8 Stanislaus: 1
Butte: 38 Marin: 8 San Bernardino: 13 Sutter: 2
Calaveras: 9 Mariposa: 6 San Diego: 65 Tehama: 19
Colusa: 2 Mendocino: 26 San Francisco: 1 Trinity: 1
Contra Costa: 15 Merced: 2 San Joaquin: 2 Tulare: 21
El Dorado: 23 Modoc: 29 San Luis Obispo: 19 Tuolumne: 4
Fresno: 22 Mono: 31 San Mateo: 10 Ventura: 5
Glenn: 1 Monterey: 14 Santa Clara: 11 Yolo: 1
Humboldt: 11 Napa: 11 Santa Cruz: 3 Yuba: 3
Inyo: 11 Nevada: 16 Shasta: 28
Kern: 17 Placer: 16 Sierra: 12
Lake: 10 Plumas: 33 Siskiyou: 13

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]. 2026. The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 02/09/2026).