Publication: Willdenowia 42(1): 15. 2012.
Origin: Introduced from South America
Herbarium search: CPNWH
Notes: FNA4: "Chenopodium macrospermum is native and diverse in South America. Much, if not all, of the North American material is introduced from there and appears to represent more than one part of the variation. Until a reliable treatment of the South American material is published we are not assigning names to the variants in North America."
Last updated 10/22/2023 by David Giblin.