Hi, welcome to the forum. I hope you do realize that these beautiful trees are Robinia species, not actually related to true acacias. They merely look much alike. I still remember both the joy upon discovering these growing right next to my apartment and the disappointment after researching their actual identity and alkaloid content. There is no dmt or any other related tryptamines in these trees. In fact they are toxic, so be careful and don't attempt to ingest any part of it.

Good, thanks. But how you make analysis and what did you use - flowers, bark or root's bark? Did you do a spectral analysis?

A further look at the wiki suggests that at least the flowers and seeds are edible.

Triptofaun, if you have the facilities you can do your own analysis of this plant but given the known toxicity of the bark and leaves, this would seem to preclude its usage as a source plant in the frankly unlikely instance that it should prove to contain any alkaloids of interest.

Beautiful pictures, BTW!

Be optimistic

Are you suggesting there's some basis for this optimism? Have you tested this?