Caapi leaf is all of that SWIM has tried out to date, it looks like tobacco leaf, may be very mild and burns nicely. He's been calling it "Changa" but probably can be most effective(a lot more precise)to confer with it as "Increased Leaf". Avatar artwork created by unidentified Cambodian https://rylanhxkzk.bloggazzo.com/35477017/not-known-details-about-changa-copyright-for-sale-sweden