... incarnata L. Specifications: 4% Flavones UV Approximately 2.5 percent appears to be flavonoids such as vitexin, orientin, homo-orientin ... quercetin, and kaempferol. In Europe, passionflower is required to contain not less than 0.8 percent total flavonoids, ... stomach problems (colic, nervous stomach, indigestion, etc. ) To relieve menstrual cramps and premenstrual syndrome (PMS) Properties/Actions ...