[Wikipedia] Range, Habitat, Description: Silene scouleri ssp. scouleri
Scouler's catchfly; along the Pacific coast from British Columbia to central California, and some areas inland. It grows in coastal prairie, bluffs, and other habitat. Its petals are white or pinkish, with two or four lobes and sometimes lateral teeth.[4][5] (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: 03/29/2025).