In my region usually use Mimosa Hostilis plant for extracting DMT and then smoking. It is also can be used for ayahuasca tea (mixed with caapi plant) but you will need much more plant so usually here it's impossible because the plant is rarity (it does not grow here).

If you have not read the book "True hallucinations" by Terence McKenna, I strongly recommend you! :) It is a non-fiction story about the group of anthropologists who had ayahuasca experience in Amazon.