[wikipedia] Habitat, Range: Sidalcea hirsuta is a species of flowering plant in the mallow family known by the common name hairy checkerbloom.[1]
It is endemic to California, where it grows in seasonally wet habitat throughout the north-central part of the state, such as vernal pools. It is found in the North California Coast Ranges, the Sacramento Valley and San Joaquin Valley, and the Sierra Nevada foothills. (link added by Mary Ann Machi)
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: 04/02/2025).