[Wikipedia] New Zealand Native, Weed Status: Although endemic to the upper North Island of New Zealand, this species has now spread both nationally and internationally and is now considered a weed in areas where it is non-endemic. (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).
