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Allium unifolium  Kellogg
One leaf onion,   Oneleaf onion
© 2021 Doug Allshouse
© 2020 stephen rosenthal
© 2023 Mary Ann Machi
© 2023 R.A. Chasey
© 2023 R.A. Chasey
© 2023 Cynthia Powell
© 2023 R.A. Chasey
© 2019 Randy Huey
© 2024 kristen hopper
© 2021 Cynthia Powell
© 2021 Judy Schwartz
© 2013 James Gonsman
© 2019 Amy Rapport
© 2018 Ken Hickman
© 2018 Alice Cummings
© 2023 Mary Ann Machi
© 2023 Mary Ann Machi
© 2023 Suzanne L. Weakley
© 2018 Margarita Orlova
© 2017 Hunter Breck
Allium unifolium is a perennial herb (bulb) that is native to California, and endemic (limited) 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
Genus: Allium
Family: Alliaceae  
(Liliaceae)
Category: angiosperm  
PLANTS group:Monocot
Jepson eFlora section: monocot

Ultramafic affinity: 1 - weak indicator / indifferent

Communities: Closed-cone Pine Forest, Mixed Evergreen Forest, Chaparral

Name Status:
Accepted by JEF + JEF + PLANTS + POWO

Information about  Allium unifolium from other sources
Nursery availability from CNPLX
This plant is available commercially.
Jepson eFlora

USDA PLANTS Profile (ALUN)

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: 03/28/2025).