What Plants Contain DMT in Australia? A Comprehensive Guide

The question of what plants contain DMT in Australia leads to a surprising answer. Dimethyltryptamine (DMT) occurs naturally in numerous species of Australian Acacia, commonly known as wattle . This discovery has significant implications for researchers, conservationists, and anyone interested in the intersection of Australian flora and psychedelic science. Consequently, understanding which species contain the compound, how much they contain, and the legal landscape surrounding them is essential.

The Primary Source: Australian Acacia (Wattle)

Australia’s native Acacia genus is one of the most widespread plant groups in the country. Western Australia alone is a centre of diversity, with 894 species naturally found across the state . The presence of DMT within these species is not uniform, however. Just as not all mushrooms are magic, not every wattle tree contains DMT .

Research has identified specific species that do contain the compound. A 2024 study screened 104 plant samples representing 79 Acacia species. The findings determined 51 DMT-containing species, 41 of which were previously unknown to contain the psychedelic . This research dramatically expanded the known range of DMT-producing Acacia in Australia.

Documented DMT-Containing Species

Several Australian Acacia species have well-documented alkaloid content:

• Acacia maidenii: Contains approximately 0.6% NMT and DMT in a 2:3 ratio in the stem bark, with both present in leaves . One source reports total alkaloid yield approaching 0.6% dry weight, with DMT comprising roughly 0.36% .
• Acacia obtusifolia: Native to Australia, grows 1.5 to 8 meters. Contains DMT in bark at 0.1–0.7%, with 5-MeO-DMT possibly present in trace amounts .
• Acacia phlebophylla: Contains 0.3% DMT in leaf .
• Acacia acuminata: Found in Western Australia, contains tryptamines including DMT, with 1–2% in bark .
• Acacia confusa: While native to Taiwan, this species is referenced in Australian ethnobotanical discussions and contains large amounts of DMT and NMT in the root bark .

Beyond Acacia: Other Australian Sources

While Acacia is the dominant source, DMT has also been found in other plants. Phalaris aquatica (Harding grass), an introduced pasture species, contains DMT and 5-MeO-DMT. One cultivar (AQ-1) contains DMT at 1+%, while 5-MeO-DMT is present in trace amounts . The alkaloid content in Phalaris varies widely depending on environmental conditions.

The Concentration Reality: Why “Containing DMT” Is Not Enough

A critical distinction exists between a plant containing DMT and a plant containing enough DMT to be practically useful. Wattle typically contains only 0.5–1.5% DMT . This means extracting even a small amount requires processing large quantities of plant material.

The concentration also exhibits substantial variability. Empirical sampling reveals up to tenfold differences in DMT content within species, attributable to genetic and environmental factors . Some populations of Acacia obtusifolia “have a very variable composition and sometimes lack tryptamines entirely” . This unpredictability makes any extraction attempt unreliable.

The Scientific Research: Mapping Australia’s DMT Resources

Australian researchers are actively investigating the country’s DMT-containing flora. Dr Mitchell Low from NICM Health Research Institute at Western Sydney University is leading a study testing 855 species of Australian wattle for their psychedelic properties, including DMT and other compounds . The study is expected to take five years.

“Most of them haven’t been tested,” says Dr Low. “We know the morphology of the species, but the chemical composition is still unknown” . In some of the wattle samples tested so far, the DMT is more potent than the Amazonian plants traditionally associated with the compound .

Dr Kelly Shepherd from the WA Herbarium conducted a pilot study screening phyllodes from specimens of 148 different Acacia species . The research found that preserved herbarium specimens provided an adequate substitute to identify and characterise psychoactive substances .

The Conservation Concern

The presence of DMT in Australian wattle has created a conservation challenge. The first law enforcement attendance at a DMT clandestine extraction laboratory in Western Australia occurred in 2008 . Since then, detection of this type of lab has steadily increased to the point where they are now the most frequently attended in WA .

DMT is typically extracted from the bark of locally occurring wattle trees . “From a conservation angle, ringbarking trees kills them,” notes Dr Shepherd. “Even before you get to extracting an A-class drug, damaging native flora is an offence in itself” .

The Legal Status: Schedule 9 Prohibition

Despite its natural occurrence in Australian flora, DMT is a Schedule 9 prohibited substance under the Australian Poisons Standard . This classification makes its possession, use, manufacture, supply, and importation illegal across every state and territory .

Conclusion

DMT is found in over 50 species of Australian Acacia, the iconic wattle trees that serve as the country’s national floral emblem . The concentration is generally low at 0.5–1.5%, and varies significantly between species and individual plants . Beyond Acacia, Phalaris aquatica also contains DMT and 5-MeO-DMT .

Australian researchers continue to map the country’s DMT resources, with studies screening hundreds of Acacia species for psychoactive compounds . However, the legal status of DMT remains firmly Schedule 9, and unauthorised extraction or possession carries severe penalties . The scientific exploration of Australia’s botanical riches continues, but it must do so within the boundaries of the law.