Hartweg sidalcea, Hartweg's checkerbloom, Valley checkerbloom
2017 David Greenberger 2024 Alaine Arslan 2022 Mike Russler 2022 Mike Russler 2022 Mike Russler 2019 Paul Aigner 2019 Paul Aigner 2023 Alaine Arslan 2022 Mike Russler 2018 Rebecca Schoenenberger 2018 Rebecca Schoenenberger 2022 Mike Russler 2012 Jean Pawek
Sidalcea hartwegii is an annual herb that is native to California, and endemic (limited) to California.
[wikipedia] Distribution, Habitat: Distribution
The plant is endemic to California, where it grows in the Sacramento Valley and adjacent foothills of the California Coast Ranges to the west, and of the Sierra Nevada to the east.[2] It can grow in oak woodland and grassland habitats below 600 metres (2,000 ft), sometimes on serpentine soils. (link added by Mary Ann Machi)
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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: 05/12/2025).
