*Causonis Rafinesque. Tribe: Cayratieae.
A genus of 25 species, lianas and herbaceous vines, of the Old World tropics and subtropics. Our single introduced species has been traditionally placed in Cayratia subgenus Discypharia, but this has been shown to be more closely allied to Tetrastigma than to Cayratia s.s., and so has been separated as Causonis (Lu et al. 2013).
Ref: Chen, Ren, & Wen (2007); Krings & Richardson (2006); Lu et al. (2013); Moore & Wen (2016) In Flora of North America Editorial Committee (2016); Wen In Kubitzki, Bayer, & Stevens (2007). Show full citations.