[Wikipedia] Comparison to C. uniflora: The range of C. andrewsiana overlaps with that of C. uniflora in Humboldt County and Del Norte County in northwestern California and Curry County in Oregon,[11][12] but the two species are readily distinguished by their flowers. C. andrewsiana has multiple flowers arranged in one or more umbels while C. uniflora has a single flower with white tepals.[10] The tepals of C. andrewsiana are a deep claret red. (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).
