[Wikipedia] Name Origin: The name reflects that in the past it used to be treated in a distinct genus Zauschneria, but modern studies have shown that it is best placed within the genus Epilobium.
The original genus name was in honor of Johann Baptista Josef Zauschner (1737–1799), a professor of medicine and botany in Prague. (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).
