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Acmispon americanus  (Nutt.) Rydb.
American bird's foot trefoil,   Spanish lotus
© 2019 Rachelle Gray
© 2013 Arcangelo Wessells
© 2017 David Wolfson
© 2016 Jim Moore
© 2023 Julia Markey
© 2019 Matt Berger
© 2021 Matthew Major
© 2018 H Bolling
© 2020 Bob Sweatt
© 2021 Jamie Spielmann
© 2020 Bob Sweatt
© 2020 Bob Sweatt
© 2016 Jim Moore
Acmispon americanus is an annual herb that is native to California.
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
DJJJASONAFMM

Bloom Period
Subspecies and Varieties:
Genus: Acmispon
Family: Fabaceae  
Category: angiosperm  
PLANTS group:Dicot
Jepson eFlora section: eudicot

Wetlands:
Arid West: Occurs in non wetlands
Mountains, Valleys and Coast: Occurs usually in non wetlands, occasionally in wetlands

Name Status:
Accepted by + POWO
Alternate Names:
OTHERLotus unifoliolatus
Information about  Acmispon americanus from other sources
Nursery availability from CNPLX
This plant is available commercially.
Photos on Calflora

Photos on CalPhotos

Google Images

Photos on iNaturalist

ID Tips on PlantID.net


Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals. [web application]. 2025. The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 03/31/2025).