[Wikipedia] Native Range: Bougainvillea spectabilis is native to Brazil, Peru, Bolivia, and Chubut Province, Argentina, but it has been introduced in many other areas. (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).
