[ClassyJacket]

I'd add MDMA in there as well. It's had good results in testing for PTSD (look up MAPS) and it changed my life for sure. Not a plant, but I hold onto no idealism about that.

[wavefunction]

It was commonly synthesized from sassafras oil (safrole) so you can add it to the list I think:

https://erowid.org/archive/rhodium/chemistry/safrolefaq.html

[ShabbosGoy]

I agree with you. LSD trips gave my life new meaning.