Columnidin
Introduction '''Columnidin''' is an orange red pigment, belonging to the 3-deoxyanthocyanidins found in red-flowered western-hemisphere gesneriad species such as episcias, columneas, sarmientas, and sinningias. The columnidin is named after the gesneriad genus ''Columnea'' in which it is found, notably in ''Columnea hybrida''.
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