Hi
Like me you want a plant friendly and sustainable way of getting hold of this stuff.
people will correct me if Im wrong but I understand that Acacia phlebophylla or Buffalo Wattle has a very good 'alkaline profile' in its phylodes. The trouble is that it is allegedly extremely difficult to grow outside of its natural ecology which is effectively on one mountain in Victoria Australia. That said, if you can get hold of one (not from Mount Buffalo itself, obviously) and can get it to thrive, then you would be doing the tree a service.
alternatively, Acacia obtusifolia has a 0.3% alkaloid content in its phylodes according to wiki. Which I gather isn't too bad.
Have you considered Psychotria Viridis or Nexus (named after this forum I believe) which also have good profiles, and I believe a narrower spectrum of alkaloids. ie. a greater percentage of the alkaloids present is DMT. Again I will be corrected if wrong.
I plan to go down the Nexus route myself, once I have developed green enough fingers. If I can get my cherry tomato plant to thrive, I then think I'll take on something a little more magical...
btw. people are encouraged to research this kind of info for themselves on this site. Theres a very decent search feature below the page top banners.
All the best