Separation of Ostericum from Angelica on the Basis of Leaf and Mericarp Flavonoids

Five species of Ostericum can be separated from Angelica s.l. by the presence in the former of high concentrations of flavonoids in leaf and mericarp. Some 15 glycosides of apigenin, luteolin, kaempferol and quercetin were characterized in Ostericum , while seven of eight species of Angelica s.s. surveyed lacked flavonoids in significant amount. Within Ostericum , each species gave a characteristic pattern; additionally in O. sieboldi , two chemical races were detected.