[Wikipedia] Range, Habitat: It is native to California, where it is known from the Santa Cruz Mountains, parts of the San Francisco Bay Area and North Coast Ranges. It has also been collected just over the border in Oregon. It occurs in old-growth forest in the understory of redwoods. It grows in mossy, moist places, often in shade. (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: 03/28/2025).