Wetlands: Arid West: Equally likely to occur in wetlands and non wetlands Mountains, Valleys and Coast: Occurs usually in wetlands, occasionally in non wetlands
[Wikipedia] Limited Range, Serpentine Soil Affinity: The plant is endemic to the Klamath Mountains of northwestern California and southwestern Oregon.[1] It is named for Del Norte County, California, its primary distribution locale.[1]
It is also endemic to serpentine soils. (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: 03/31/2025).
one or more occurrences