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Delphinium hansenii  (Greene) Greene
Eldorado larkspur,   Hansen's larkspur
© 2022 Steve Matson
© 2022 Steve Matson
© 2014 Steve Matson
© 2020 Sharon Reeve
© 2023 R.A. Chasey
© 2023 Karen Swift
© 2024 R.A. Chasey
© 2024 R.A. Chasey
© 2024 R.A. Chasey
© 2021 Mike Russler
© 2024 R.A. Chasey
© 2022 Steve Matson
© 2009 BOB CASE
© 2021 Mike Russler
© 2021 Mike Russler
© 2021 Mike Russler
© 2021 Mike Russler
© 2014 Steve Matson
© 2014 Steve Matson
© 2014 Steve Matson
© 2009 BOB CASE
© 2023 Richard Sullivan
Delphinium hansenii is a perennial herb 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
Subspecies and Varieties:
Genus: Delphinium
Family: Ranunculaceae  
Category: angiosperm  
PLANTS group:Dicot
Jepson eFlora section: eudicot

Toxicity: Do not eat any part of this plant.

Communities: Yellow Pine Forest, Foothill Woodland, Chaparral

Name Status:
Accepted by JEF + PLANTS + POWO

Alternate Names:
OTHERDelphinium hanseni
Information about  Delphinium hansenii from other sources
Nursery availability from CNPLX
Commercial availability unknown.
Jepson eFlora

USDA PLANTS Profile (DEHA)

Photos on Calflora

Photos on CalPhotos

Google Images

Photos on iNaturalist

ID Tips on PlantID.net

[Wikipedia] Flower Colors, Identifiers: The flowers are white to light blue or light pink, or bicolored, and vary in size. The inner petals may be quite hairy. It could be confused with Delphinium hesperium, but is it easily identifiable by the unique seeds of the Eldorado larkspur. The seeds are very unique among members of its genus, bearing many prism-like raised structures. Most other species can also be distinguished from D. hansenii from its seeds.[4] (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: 03/29/2025).