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Taxon  Report  
Lupinus constancei  T. W. Nelson & J. P. Nelson
Lassics lupine
Lupinus constancei is a perennial herb that is native to California, and endemic (limited) to California.
also called Lupinus humboldtii
California Rare Plant Rank: 1B.1 (rare, threatened, or endangered in CA and elsewhere).
State of California 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
~14 records in California
yellowone or more occurrences
within a 7.5-minute quadrangle
DJJJASONAFMM

Bloom Period
Genus: Lupinus
Family: Fabaceae  
Category: angiosperm  
PLANTS group:Dicot
Jepson eFlora section: eudicot

Toxicity: Do not eat any part of this plant.

Ultramafic affinity: 6 - strict endemic

Communities: Yellow Pine Forest

Name Status:
Accepted by JEF + CNPS + PLANTS + POWO
Alternate Names:
CNPSLupinus humboldtii
PLANTSLupinus lepidus var. constancei
Information about  Lupinus constancei from other sources
Nursery availability from CNPLX
Commercial availability unknown.
Jepson eFlora

USDA PLANTS Profile (LUCO7)

Photos on Calflora

Photos on CalPhotos

Google Images

Photos on iNaturalist

ID Tips on PlantID.net

CDFW seeks infomation related to Lassics Lupine: California Department of Fish and Wildlife

[wildlife.ca.gov] Endangered Species: Lassics Lupine (Lupinus constancei) Lassics lupine (Lupinus constancei) is a California endangered plant species, which means that killing or possessing this plant is prohibited by the California Endangered Species Act (CESA). (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: 05/15/2025).