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Taxon  Report  
Lilium occidentale  Purdy
Western lily
Lilium occidentale is a perennial herb (bulb) that is native to California, and also found in Oregon.
California Rare Plant Rank: 1B.1 (rare, threatened, or endangered in CA and elsewhere).
State of California status: Endangered. Federal status: Endangered.
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
~57 records in California
yellowone or more occurrences
within a 7.5-minute quadrangle
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Bloom Period
Genus: Lilium
Family: Liliaceae  
Category: angiosperm  
PLANTS group:Monocot
Jepson eFlora section: monocot

Wetlands: Occurs usually in wetlands, occasionally in non wetlands

Habitat: freshwater-marsh, bogs/fens, openings, coastal

Communities: Freshwater Wetlands, Northern Coastal Scrub, North Coastal Coniferous Forest, Coastal Prairie, wetland-riparian

Name Status:
Accepted by JEF + CNPS + PLANTS

Information about  Lilium occidentale from other sources
Nursery availability from CNPLX
Commercial availability unknown.
Jepson eFlora

USDA PLANTS Profile (LIOC2)

Photos on Calflora

Photos on CalPhotos

Google Images

Photos on iNaturalist

ID Tips on PlantID.net

[Wikipedia] Rarity, Habitat, Range, Pollinators, Conservation: Lilium occidentale is a rare North American species of lily known by the common name western lily. Its species name 'Occidentale' means 'westernmost' and refers to its location along the West Coast. It is native to northwestern California and southwestern Oregon.[1][2][3] It grows in coastal prairie habitat, swamps and stagnant bogs with Drosera species, bluffs and sandy cliffs, and seaside spruce forests. This rare wildflower is limited in distribution and directly endangered by a number of environmental factors. It is a federally listed endangered species and it is listed as endangered by the states of California and Oregon. It is found growing along a narrow 200 mile stretch of coast between Southern Oregon and Northern California usually within sight of the ocean. Its furthest northern distribution is Florence, Oregon to as far south as Eureka, California. The flower is pollinated chiefly by hummingbirds, including Allen's hummingbird (Selasphorus sasin).[4] Lilium occidentale produces more nectar than any other American lily, which is not surprising given that hummingbirds are the primary pollinator. Conservation Threats to this species have included grazing and trampling by livestock, development and ranching, cranberry farming, genetic drift, vehicles and road maintenance, and horticultural collecting of the bulbs and flowers. New sprouts and shoots dry out quickly and are easily crushed. The invasion of trees into the plant's habitat, either by natural succession or deliberate planting and fire suppression, can alter the hydrology and soil structure enough to eliminate it.[1] When the plant was listed as an endangered species in 1994, there were 2000 to 3000 individuals remaining.[5] (contributed by Mary Ann Machi)


Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals. [web application]. 2024. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 04/13/2024).