In general
Thai's are stimulating
Kali's are from a region in borneo , so it's very simmilar to bali --sedating
Red's are sedating, whites are stimulating, and greens are somewear in the middle
But names dont always mean much
By the way since kratom is highly illegal in thailand, very little actually comes from their , it's just a name to indiciate it;s effects . This can be confirmed by looking at the overseas wholesalers 90% comes from indo. 8% comes from maylasa (also illegal but not enforced), and mayabe 1% from thai. and another 1% from other countrys in the SE Asia area