[Wikipedia] South America Native, Description: Amaranthus deflexus is also known by the common names low amaranth, Argentina amaranth, perennial pigweed,[1] and large-fruit amaranth.[2] It is native to South America, and has been introduced to many other parts of the world.[3] It is a short-lived perennial or annual plant. The plant can grow up to 1.5 ft (0.5 m) in height. (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).