Amaranthus palmeri, or carelessweed

Palmer amaranth, a weed with a glyphosate-resisting genetic mutation, is spreading, The New York Times reported today.

Farmers have gone so far as to use manual labor to pull up what is also known as “carelessweed,” but the Environmental Protection Agency is set to approve genetically modified seeds that tolerate other weed killers.

▪ The New York Times — Invader Batters Rural America, Shrugging Off Herbicides
▪ USDA Natural Resources Conservation Service — Amaranthus palmeri “Carelessweed”