''Tetrapterys styloptera'' (

syn. The Botanical and Zoological Codes of nomenclature treat the concept of synonymy differently. * In botanical nomenclature, a synonym is a scientific name that applies to a taxon that (now) goes by a different scientific name. For example, Linnae ...

''Tetrapterys methystica'' and ''Tetrapteris methystica'') is a psychoactive plant native to the New World tropics, from Panama to the

Amazon rainforest The Amazon rainforest, Amazon jungle or ; es, Selva amazónica, , or usually ; french: Forêt amazonienne; nl, Amazoneregenwoud. In English, the names are sometimes capitalized further, as Amazon Rainforest, Amazon Forest, or Amazon Jungle. ...

. Despite limited analytic information, its

alkaloids Alkaloids are a class of basic, naturally occurring organic compounds that contain at least one nitrogen atom. This group also includes some related compounds with neutral and even weakly acidic properties. Some synthetic compounds of similar st ...

are believed to be similar to ones from '' Banisteriopsis caapi'' which contains

harmala alkaloid Several alkaloids that function as monoamine oxidase inhibitors (MAOIs) are found in the seeds of ''Peganum harmala'' (also known as ''Harmal'' or ''Syrian Rue''), as well as tobacco leaves including harmine, harmaline, and harmalol, which are m ...

s and

MAOIs Monoamine oxidase inhibitors (MAOIs) are a class of drugs that inhibit the activity of one or both monoamine oxidase enzymes: monoamine oxidase A (MAO-A) and monoamine oxidase B (MAO-B). They are best known as effective antidepressants, especia ...

. More recently, the vine has been exported from Peru as "grey ayahuasca".Sonoran Song (http://sonoransong.com/greyaya.html)

Legality

''Tetrapterys methystica'' is cited in

Louisiana State Act 159 Signed into law June 28, 2005, and effective August 8, 2005, Louisiana State Act No 159 found in, Louisiana RS 40:989.1, outlawed the cultivation, possession or sale of 40 named plants defined as hallucinogenic in the state of Louisiana, US. House ...

References

Malpighiaceae Flora of Brazil Flora of the Amazon {{Hallucinogen-stub