For centuries, plants have been used by man (and animal) to cure various illnesses. It is only recently we've begun to understand which plant compound in what dosage will cure which disease. Some plants like the opium poppy are exploited for recreational drug use as well as medicinal properties. Some plants serve no medical purpose at all but are sold by shysters to the same gullible people who think vaccines cause autism. Basically, I'm looking for plants with scientifically proven, tested, and officially used medicinal properties. It's not homeopathy I'm looking for. I want real plants used to make drugs for pharmacies all over the world.