Causonis trifolia commonly known as bush grape, fox-grape, three-leaved wild vine or threeleaf cayratia is a species of plant native to regions from India, through Southeast Asia to Australia and the western Pacific Ocean. It is a vine with a stem diameter up to 7 cm (2.8 in), trifoliate leaves and blackish berries. Its leaves contain several flavonoids, such as cyanidin and delphinidin. Hydrocyanic acid is present in the stem, leaves and roots.
