Flavonols (Hydroxy derivatives of flavone):
Fisetin,
Galangin,
Kaempferide,
Kaempferol,
Morin,
Myricetin,
Myricitrin,
Quercetin,
Quercetrin,
Rhamnetin,
Robinin,
Rutin,
Spirenoside
4 major flavonol species illustrated