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Taxon  Report  
Lilium washingtonianum  Kellogg  ssp. purpurascens  (Stearn) M. W. Skinner
Cascade lily,   Purple flowered washington lily
Lilium washingtonianum ssp. purpurascens is a perennial herb (bulb) that is native to California, and also found in Oregon.
California Rare Plant Rank: 4.3 (limited distribution).
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
~58 records in California
yellowone or more occurrences
within a 7.5-minute quadrangle
DJJJASONAFMM

Bloom Period
Parent: Lilium washingtonianum
Genus: Lilium
Family: Liliaceae  
Category: angiosperm  
PLANTS group:Monocot
Jepson eFlora section: monocot

Ultramafic affinity: 3.5 - broad endemic / strong indicator

Communities: Yellow Pine Forest, Red Fir Forest, Lodgepole Forest, Chaparral

Name Status:
Accepted by JEF + CNPS + PLANTS
Alternate Names:
JEFLilium purpureum
JEF + PLANTSLilium washingtonianum var. purpurascens
Information about  Lilium washingtonianum ssp. purpurascens from other sources
Nursery availability from CNPLX
Commercial availability unknown.
Jepson eFlora

USDA PLANTS Profile (LIWAP2)

Photos on Calflora

Photos on CalPhotos

Google Images

Photos on iNaturalist

ID Tips on PlantID.net

[oregonflora.org] Pollinators: The Cascade lily is pollinated by sphinx and doubtless other moths in the family Sphingidae. Nectar secretion and scent production are timed to their arrival at dusk. The open nature of the flower and copious nectar secretion attract many diurnal visitors including a variety of butterflies, bees, and flies, but these insects are not significant pollinators. (link added 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]. 2025. The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 05/13/2025).