any of a large class of plant pigments having a chemical structure based on or similar to flavone

a flavonol found in many fruits, vegetables, leaves and grains.

a yellow colored substance that can be isolated from Maclura pomifera (Osage orange), Maclura tinctoria (old fustic) and from leaves of Psidium guajava (common guava).

an O-methylated flavonol which can be found in Rhamnus petiolaris, a buckthorn plant endemic to Sri Lanka.

a member of the flavonoid class of polyphenolic compounds, with antioxidant properties; it can be found in vegetables, fruits, nuts, berries, tea, and red wine.

an O-methylated flavonol found in Kaempferia galanga (aromatic ginger).