Datura

It's strange but, a few teenagers in Tennessee, every year die from Datura stramonium experimentation (a few even in the 'home counties').  They assume that every plant will be hallucinogenic, instead of deadly.  Our point being, that spiritual/medicinal masters from the 'old to new' world who use Datura are often trained to use the plant.  This is even risky, as plants in full sun and fertile ground will be stronger, regardless of the faux modern selling point, no plant can be standardized.  Each plant has a different strength and signature to the wise and few are 'wise'.