[Wikipedia] Etymology: The specific name imbricans refers to the overlapping (imbricate) leaflets, from the Latin imbricatus. (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: 04/08/2025).