Tim, a “list of sinful plants” wouldn’t be necessary, only the statement of the church that in principle hallucinogens were prohibited, and some examples could be given as a guide.
And that leaves out opium, which has been used by God's people for at least 3000 years for pain, even though it's an hallucinogen. It just doesn't pass the test of systematic thought.
To those who say there is no such thing as actual power manifested by these chaps, I will forgo answering so obvious a phenomena.
Is one single proven example too much to ask????? Back in the 70s I can remember kids at school talking about unarmed Japanese martial artists killing large numbers of US and Russian (armed) troops by running around pulling their hearts out and so forth. I can imagine 10 years before you hearing the same nonsense about yogis and gurus. But if there is no actual proof then not believing such stories isn't a lack of a healthy, Biblical faith. It's just naivete.