[Wikipedia] Range, Habitat: Helenium puberulum is a North American species of flowering plants in the daisy family known by the common name rosilla.[2] It is native to California and Baja California, where it can be found in moist habitats such as riverbanks and meadows. It has also been found in Oregon, although these might possibly be naturalized populations.[3][4] (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: 03/29/2025).
