>It indeed existed and we had the opportunity to evolve with its ambient presence.
It may exist in a number of plants all over the world but that doesn't mean that people were harvesting and using it outside of certain isolated cultures until fairly recently, compared to evolutionary timescales.
If anything I'd expect significant genetic variation representing adaptations only present in some groups.
It may exist in a number of plants all over the world but that doesn't mean that people were harvesting and using it outside of certain isolated cultures until fairly recently, compared to evolutionary timescales.
If anything I'd expect significant genetic variation representing adaptations only present in some groups.
https://pubmed.ncbi.nlm.nih.gov/20859791/