Idaein

Idaein, also known as ideain, cyanidin 3-O-galactoside, or Cy3Gal, is a type of anthocyanin, a class of plant pigment compounds.

Natural occurrences

Idaein is the main anthocyanin compound in lingonberries, and the name of the compound is derived from the Latin name of the plant. It is also present as one of the many anthocyanins compounds found in bilberries and cranberries.
Idaein is the main anthocyanin in red-skinned or red-fleshed apple varieties. It is also found in Chinese hawthorn fruits. It is also the pigment in the copper beech, that was identified in 1932.
Quintinia serrata, the tawheowheo, a species of evergreen trees endemic to New Zealand, has different patterns of anthocyanins in its leaves to protect the shade-adapted chloroplasts from direct sunlight.