Meteloidine is an alkaloid found in some Brugmansia and Datura species.

[2] The first report of the isolation from a natural source of meteloidine was in 1908 by Frank Lee Pyman and William Colebrook Reynolds[3] from the flowering plant Datura metel along Angelate ester and Datura meteloides (now reclassified as Datura innoxia).

[4] Meteloidine is primarily found in solanaceous plants, and in one species of genus Erythroxylum.

It has been found in the leaves and flowers of Brugmansia × candida,[5] and in the roots of Datura leichhardtii,[6] Brugmansia suaveolens,[7] Anthocercis littorea and Anthocercis viscosa[8] in minor quantities, and in Anthocercis genistoides as its principal alkaloid.

Meteloidine has been identified in Erythroxylum australe, which is of chemotaxonomic interest as meteloidine has been found in a number of the Solanacae family, but in only one species in the family Erythroxylaceae.