[Wikipedia] Introduction to North America, Distribution, Habitat: It has been proposed that the species was introduced from Europe to North America.[8] In North America, it is also thought to have been introduced from coastal to inland locations.[9] It is widely distributed in temperate and subtropical regions, growing in marshes, wetlands, and along the edges of ponds and lakes. (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).
