DMT (N,N-Dimethyltryptamine) is a naturally occurring psychedelic compound found in a wide variety of plants and animals, including humans. Plant sources:

• It is commonly extracted from the root bark of Mimosa hostilis, a plant native to South America.
• Other notable plants containing DMT include Psychotria viridis (used in ayahuasca), Acacia trees, Virola species, and several others across different continents including South America, Mexico, and parts of Asia.
• DMT is present in at least fifty plant species from ten families, often in seeds, bark, or leaves

Animal and human sources:

• DMT is also found endogenously in some animals and humans. It is synthesized in the human body from the amino acid tryptophan via enzymatic processes involving indolethylamine-N-methyltransferase (INMT), which is present in various tissues including the lungs, adrenal glands, and brain regions such as the pineal gland, amygdala, and frontal cortex

Summary:

• Naturally, DMT is derived mainly from certain plants, especially Mimosa hostilis and Psychotria viridis.
• It is also produced in small amounts naturally within the human body and some animals.
• Illicitly, DMT is often extracted from plant material for use as a psychedelic substance

Thus, DMT comes from both natural plant sources and endogenous synthesis in animals and humans.