Columnidin is an orange red pigment, belonging to the

3-deoxyanthocyanidin The 3-Deoxyanthocyanidins and their glycosides (3-deoxyanthocyanins or 3-DA) are molecules with an anthocyanidins backbone lacking an hydroxyl group at position 3 on the C-ring. This nomenclature is the inverse of that which is commonly used in f ...

s found in red-flowered western-hemisphere gesneriad species such as

episcia ''Episcia'' is a genus of flowering plants in the African violet family, Gesneriaceae. The ten species it contains are native to the tropical regions of Central and South America. The species are perennial herbaceous plants characterized by a sto ...

columnea ''Columnea'' is a genus of around 200 species of epiphytic herbs and shrubs in the family Gesneriaceae, native to the tropics of the Americas and the Caribbean. The tubular or oddly shaped flowers are usually large and brightly colored – u ...

s, sarmientas, and sinningias. The columnidin is named after the gesneriad genus ''

Columnea ''Columnea'' is a genus of around 200 species of epiphytic herbs and shrubs in the family Gesneriaceae, native to the tropics of the Americas and the Caribbean. The tubular or oddly shaped flowers are usually large and brightly colored – u ...

'' in which it is found, notably in '' Columnea hybrida''.

References

{{anthocyanins Anthocyanidins Catechols Hydroxyquinols