[Wikipedia] Range, Description: Streptanthus longisiliquus (orth. var. S. longisiliqus) is a species of flowering plant in the mustard family known by the common name long-fruit jewelflower.[1] It was first described to science in 2007.[2] It is endemic to northern California, where it is known from Butte, Tehama, and Shasta Counties. It can be found in forest and woodland habitat in mountains and foothills. (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: 04/03/2025).