When I first started researching thcv, I saw that the highest thcv strain the US Govt tested was Hmong/Meao Thai.
So I looked into this strain and then the culture. What I found was mind-blowing for me at the time. The Hmong people were refugees from Tibet from one of the many times China fucked with Tibet. So a bunch of Tibetanese people moved to northern thailand area and brought their genetics with them. It didn’t take long for their Tibet genetics to adapt and resemble Thai genetics
Then there’s Hawaiian webbed indica (ducksfoot) that is related to Australia.
La Reunion Island is very isolated and a great place to find old Indian sativa.
The list goes on.