Calflora
Taxon  Report   235    
Allium siskiyouense  Ownbey ex Traub
Siskiyou onion
Allium siskiyouense, a monocot, is a perennial herb (bulb) that is native to California and Oregon.
California Rare Plant Rank: 4.3 (limited distribution).   CNDDB
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
Observation Search
(134 records)
one or more occurrences
within a 7.5-minute quadrangle

Bloom Period
Family: ALLIACEAE  
Genus: Allium

Toxicity: MINOR

Ultramafic affinity: 2.8; (strong indicator)

Communities: Red Fir Forest, Yellow Pine Forest

Name Status:
Accepted by JEF + CNPS + PLANTS

Alternate Names:
JEF + PLANTS: Allium falcifolium var. demissum
More information about  Allium siskiyouense

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]. 2021. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: Jan 20, 2021).