Orientin
Orientin is a flavone, a chemical flavonoid-like compound. It is the 8-C glucoside of luteolin.
Natural occurrences
Orientin is found in Adonis vernalis, in Anadenanthera colubrina and Anadenanthera peregrina, and in the Phyllostachys nigra bamboo leaves; In food
Orientin is also reported in the passion flower, the Açaí palm, buckwheat sprouts, and in millets.