Breynia cernua grows naturally in Australia and Malesia as a shrub up to 2 m (7 ft) in height.[1]
Breynia cernua presumably is dependent on leafflower moths (Epicephala spp.) for its pollination, like other species of tree in the genus Breynia.[2][3]
The plant is known by the rather unfortunate name of fart bush.[4]
^Kawakita, A.; Kato, M. 2004. Obligate pollination mutualism in Breynia (Phyllanthaceae): further documentation of pollination mutualism involving Epicephala moths (Gracillariidae). American Journal of Botany.91: 1319–1325
^Zhang, J.; Wang, S.; Li, H.; Hu, B.; Yang, X.; Wang, Z. 2012. "Diffuse coevolution between two Epicephala species (Gracillariidae) and two Breynia species (Phyllanthaceae). PLOS ONE.7: e41657.