''Radula perrottetii'' is a species of plant in genus ''

Radula The radula (, ; plural radulae or radulas) is an anatomical structure used by molluscs for feeding, sometimes compared to a tongue. It is a minutely toothed, chitinous ribbon, which is typically used for scraping or cutting food before the food ...

'', a genus of

liverwort The Marchantiophyta () are a division of non-vascular land plants commonly referred to as hepatics or liverworts. Like mosses and hornworts, they have a gametophyte-dominant life cycle, in which cells of the plant carry only a single set of ...

s. It is endemic in Japan. It contains the small molecule

perrottetinene Perrottetinene is a naturally occurring cannabinoid compound found in liverworts from the genus ''Radula'' native to Japan, New Zealand and Costa Rica, namely '' Radula perrottetii'', '' Radula marginata'' and ''Radula laxiramea'', along with a n ...

cannabinoid Cannabinoids () are several structural classes of compounds found in the cannabis plant primarily and most animal organisms (although insects lack such receptors) or as synthetic compounds. The most notable cannabinoid is the phytocannabinoid tet ...

and other metabolites of scientific interest including marchantin A.

References

Porellales Flora of Japan {{Bryophyte-stub