Calflora, a 501c3 non-profit
Distribution by County   11269    
Acmispon americanus  (Nutt.) Rydb.  var. americanus 
American bird's foot trefoil,   American trefoil,   Spanish lotus
Acmispon americanus var. americanus is an annual herb that is native to California, and also found elsewhere in North America and beyond.
also called Lotus purshianus var. purshianus
Record Count by County

Alameda: 22 Lake: 21 Placer: 59 Shasta: 44
Alpine: 11 Lassen: 36 Plumas: 55 Sierra: 20
Amador: 25 Los Angeles: 54 Riverside: 42 Siskiyou: 32
Butte: 92 Madera: 10 Sacramento: 36 Solano: 12
Calaveras: 24 Marin: 56 San Benito: 75 Sonoma: 41
Colusa: 14 Mariposa: 22 San Bernardino: 33 Stanislaus: 7
Contra Costa: 30 Mendocino: 34 San Diego: 248 Sutter: 4
Del Norte: 7 Merced: 12 San Francisco: 1 Tehama: 33
El Dorado: 91 Modoc: 33 San Joaquin: 5 Trinity: 28
Fresno: 54 Mono: 3 San Luis Obispo: 72 Tulare: 20
Glenn: 3 Monterey: 101 San Mateo: 48 Tuolumne: 24
Humboldt: 25 Napa: 20 Santa Barbara: 20 Ventura: 30
Inyo: 8 Nevada: 49 Santa Clara: 37 Yolo: 6
Kern: 18 Orange: 22 Santa Cruz: 29 Yuba: 6

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: 04/26/2024).