Cayratia trifolia
Encyclopedia
Cayratia trifolia is a species of liana
Liana
A liana is any of various long-stemmed, woody vines that are rooted in the soil at ground level and use trees, as well as other means of vertical support, to climb up to the canopy to get access to well-lit areas of the forest. Lianas are especially characteristic of tropical moist deciduous...

 plant native to Australia and Asia. It has black-colored berries, and its leaves contain several flavonoid
Flavonoid
Flavonoids , are a class of plant secondary metabolites....

s, such as cyanidin
Cyanidin
Cyanidin is a natural organic compound. It is a particular type of anthocyanidin . It is a pigment found in many red berries including but not limited to grapes, bilberry, blackberry, blueberry, cherry, cranberry, elderberry, hawthorn, loganberry, acai berry and raspberry...

 and delphinidin
Delphinidin
Delphinidin is an anthocyanidin, a primary plant pigment, and also an antioxidant. Delphinidin gives blue hues to flowers like violas and delphiniums...

. Hydrocyanic acid is present in the stem, leaves and roots.
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