"Tropoflavin, also known as 7,8-dihydroxyflavone, is a naturally occurring flavone found in Godmania aesculifolia, Tridax procumbens, and primula tree leaves."
"Tridax procumbens, commonly known as coatbuttons[2] or tridax daisy, is a species of flowering plant in the family Asteraceae. It is best known as a widespread weed and pest plant."
"Primula (/ˈprɪmjʊlə/)[1] is a genus of herbaceous[2] flowering plants in the family Primulaceae. They include the primrose (P. vulgaris), a familiar wildflower of banks and verges. Other common species are P. auricula (auricula), P. veris (cowslip), and P. elatior (oxlip). These species and many others are valued for their ornamental flowers. They have been extensively cultivated and hybridised (in the case of the primrose, for many hundreds of years). Primula are native to the temperate Northern Hemisphere, south into tropical mountains in Ethiopia, Indonesia, and New Guinea, and in temperate southern South America. Almost half of the known species are from the Himalayas."[2]
Godmania aesculifolia is a species of flowering plant in the family Bignoniaceae, native to the New World tropics.[2][3][4] A tree, it contains 7,8-dihydroxyflavone, a flavonoid.[5]