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Pholistoma membranaceum  (Benth.) Constance
White fiesta flower,   White fiestaflower
© 2025 Mike Russler
© 2005 Steve Matson
© 2025 Mike Russler
© 2019 Gary McDonald
© 2016 Steve Matson
© 2024 Julie A. Kierstead
© 2024 Julie A. Kierstead
© 2025 Mike Russler
© 2025 Mike Russler
© 2025 Mike Russler
© 2019 Gary McDonald
© 2019 Matt Berger
© 2020 Diane Etchison
© 2024 Julie A. Kierstead
© 2016 Steve Matson
© 2016 Steve Matson
© 2016 Steve Matson
© 2016 Steve Matson
© 2016 Steve Matson
© 2021 Helen Hancock
© 2022 Mike Russler
© 2023 David Wolfson
© 2022 R.A. Chasey
Pholistoma membranaceum is an annual 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
DJJJASONAFMM

Bloom Period
Genus: Pholistoma
Family: Hydrophyllaceae  
Category: angiosperm  
PLANTS group:Dicot
Jepson eFlora section: eudicot

Communities: Creosote Bush Scrub, Joshua Tree Woodland
Name Status:
Accepted by JEF + PLANTS + POWO

Information about  Pholistoma membranaceum from other sources
Nursery availability from CNPLX
Commercial availability unknown.
Jepson eFlora

USDA PLANTS Profile (PHME3)

Photos on Calflora

Photos on CalPhotos

Google Images

Photos on iNaturalist

ID Tips on PlantID.net


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: 03/31/2025).