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Platystemon californicus  Benth.
Cream cups,   Creamcups
© 2017 Nathanial Wigington
© 2022 John L. Thompson
© 2022 John L. Thompson
© 2025 Mary Ann Machi
© 2021 Mike Russler
© 2021 Mike Russler
© 2015 Ken Lunders
© 2018 James Gonsman
© 2019 Diane Etchison
© 2019 Diane Etchison
© 2019 Diane Etchison
© 2010 Richard Spjut
© 2019 Matt Berger
© 2019 James Gonsman
© 2015 James Gonsman
© 2023 Bryce Ryals
© 2024 Cynthia Powell
© 2024 Cynthia Powell
© 2024 Cynthia Powell
© 2024 Charles Russell
© 2023 David Lumpkin
© 2020 Mitchell Coleman
© 2020 Mitchell Coleman
© 2020 Mitchell Coleman
© 2017 Chris Mo
© 2021 Karen Swift
© 2022 John L. Thompson
© 2022 Linnea vonAhn
© 2023 Steve Laymon
© 2023 Charles Smith
© 2024 Mary Ann Machi
© 2024 Mary Ann Machi
© 2024 Julie A. Kierstead
© 2024 Julie A. Kierstead
© 2024 David Lumpkin
© 2020 R.A. Chasey
Platystemon californicus 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
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Bloom Period
Subspecies and Varieties:
Genus: Platystemon
Family: Papaveraceae  
Category: angiosperm  
PLANTS group:Dicot
Jepson eFlora section: eudicot

Ultramafic affinity: 1.7 - weak indicator

Habitat: coastal

Communities: Coastal Sage Scrub, Northern Oak Woodland, Southern Oak Woodland, Foothill Woodland, Chaparral, Valley Grassland

Name Status:
Accepted by JEF + PLANTS + POWO

Alternate Names:
PLANTSPlatystemon arizonicus
JEF + PLANTSPlatystemon californicus var. crinitus
JEF + PLANTSPlatystemon californicus var. horridulus
JEF + PLANTSPlatystemon californicus var. nutans
JEF + PLANTSPlatystemon californicus var. ornithopus
More …
Information about  Platystemon californicus from other sources
Nursery availability from CNPLX
This plant is available commercially.
Jepson eFlora

USDA PLANTS Profile (PLCA5)

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: 03/28/2025).