Centaurium calycosum is a plant that belongs to the Gentian family. The plant is known for its beautiful pink flowers that bloom in clusters. Centaurium calycosum is also commonly known as pink centaury, pink star gentian, and showy centaury. Other synonyms for Centaurium calycosum include Erythraea calycosa, Gentiana calycosa, Sabatia calycosa, Sabatia campestris, and Sabatia speciosa. The plant is native to North America and can be found in grasslands, prairies, and open woodlands. It has been traditionally used for medicinal purposes to treat digestive problems and fever. Centaurium calycosum is also a popular ornamental plant and is often grown in gardens for its vibrant blooms.