A. Vogal Centaurium (Centaury)Description What is Centaurium (Centaury)? Centaurium umbellatum, used in our Centaurium tincture, is a small plant with purple flowers. Found in many parts of the world but especially in Middle Europe and Asia, the classification of the group of plants known as Centaurium is still in discussion. Due to this, Centaurium umbellatum is sometimes also referred to as Centaurium erythrea. It is said that the group of plants named Centaurium derived its