Causonis is a genus of flowering plants belonging to the family Vitaceae; it is now placed in the tribe Cayratieae.

Its native range is Tropical and Subtropical Asia to Southwestern Pacific.

Species

Plants of the World Online currently includes:

  1. Causonis clematidea (F.Muell.) Jackes
  2. Causonis corniculata (Benth.) J.Wen & L.M.Lu
  3. Causonis eurynema (B.L.Burtt) Jackes
  4. Causonis japonica (Thunb.) Raf. - type species
  5. Causonis maritima (Jackes) Jackes
  6. Causonis pterita (Merr.) J.Wen & L.M.Lu
  7. Causonis trifolia (L.) Mabb. & J.Wen