Superweeds are plants that have developed resistance to herbicides, often due to repeated exposure and evolution.
Herbicide Resistance: This is when plants evolve in a way that allows them to survive even after being exposed to herbicides meant to kill them.
This is a mechanism of evolution where allele frequencies change by chance, which can contribute to the development of superweeds.
The process whereby organisms better adapted to their environment tend to survive and produce more offspring. It's one way superweeds can develop.