@SerfnUSA @redneonglow cola originally came form the kola nut, which was a caffeine-containing nut from Africa. However, it isn't used in soda anymore, probably because it was too exotic and expensive to import.
Modern cola flavor is made from citrus oils (from orange, lime, and lemon peels), cinnamon, vanilla, and an acidic additive.
I did find a cola that uses real kola nut here: https://drinktractor.com/drinks/kola-cola