Published March 2, 1989.
List of German Commission E Monographs (Phytotherapy)
Centaurea cyanus, cyani flos, cornflower, cyani flower.
Cornflower flower consists of the dried flowers of Centaurea cyanus L. [Fam. Asteraceae], freed from the receptacles and calyces, as well as preparations thereof.
The whole inflorescence and its preparations are also used.
Cornflower flowers and their preparations are used for fever, menstrual disorders, vaginal candidiasis, as a laxative, tonic, bitter, also as a diuretic and an expectorant, as well as a stimulant for liver and gallbladder function.
The effectiveness for the claimed applications is not documented.
Since the effectiveness for the claimed applications is not documented, a therapeutic use of this herb cannot be recommended.
There is no concern regarding the use as a coloring agent in herbal teas.