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Primula hendersonii  (A. Gray) Mast & Reveal
Mosquito bill
© 2025 Britt Thorsnes
© 2016 Steve Matson
© 2020 BLM Redding Field Office
© 2016 Steve Matson
© 2024 Cynthia Powell
© 2024 Mary Ann Machi
© 2024 Mike Russler
© 2024 Mary Ann Machi
© 2025 Mike Russler
© 2025 Mike Russler
© 2025 Mike Russler
© 2025 Mike Russler
© 2025 Mike Russler
© 2024 Cynthia Powell
© 2024 Mike Russler
© 2024 Mike Russler
© 2024 Mike Russler
© 1905 Judy and Barry Breckling
© 2020 Aleksandra Evert
© 2021 Charles Russell
© 2016 Steve Matson
© 2016 Steve Matson
© 2016 Steve Matson
© 2021 Charles Russell
© 2022 Ken Lunders
© 2022 Jamie Spielmann
© 2022 Efren Alvarez
© 2018 Doug Zimmerman
© 2024 Mike Russler
© 2019 Patrick Furtado
Primula hendersonii is a perennial herb that is native to California, and also found elsewhere in western North America.
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
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Bloom Period
Genus: Primula
Family: Primulaceae  
Category: angiosperm  
PLANTS group:Dicot
Jepson eFlora section: eudicot

Toxicity: Possible skin irritation from touching any part of this plant.

Communities: Yellow Pine Forest, Foothill Woodland, Chaparral, Valley Grassland, many plant communities

Name Status:
Accepted by JEF + POWO
Alternate Names:
JEFDodecatheon hansenii
JEFDodecatheon hendersonii ssp. cruciatum
JEFDodecatheon hendersonii ssp. hansenii
JEFDodecatheon hendersonii ssp. hendersonii
JEFDodecatheon hendersonii ssp. parvifolium
More …
Information about  Primula hendersonii from other sources
Nursery availability from CNPLX
This plant is available commercially.
Jepson eFlora

Photos on Calflora

Photos on CalPhotos

Google Images

Photos on iNaturalist

ID Tips on PlantID.net

Learn more about Primula hendersonii: Primula hendersonii Jepson video: (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: 03/30/2025).