Systematic qualitative and quantitative assessment of anthocyanins, flavones and flavonols in the petals of 108 lotus (Nelumbo nucifera) cultivars

► Anthocyanins, flavones and flavonols were analysed in 108 lotus cultivars. ► A flavonol isorhamnetin 3-O-glucuronide was first detected in lotus petal. ► Relationship between lotus petal colour and content of flavonoids was suggested. ► Some lotus cultivars with high content of anthocyanins were selected.