2019 Paul Aigner 2017 R.A. Chasey 2024 Chloe and Trevor Van Loon 2021 Charles Russell 2021 Paul Aigner 2023 Paul Aigner 2021 Charles Russell 2023 Paul Aigner
Calyptridium quadripetalum is an annual herb that is native to California, and endemic (limited) to California.
California Rare Plant Rank: 4.3 (limited distribution).
[Wikipedia] Range, Habitat: It is endemic to the North Coast Ranges of California, where it is an uncommon member of the serpentine soils flora on the slopes. (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: 05/13/2025).
one or more occurrences