Family Code: ASTERA Genus Code: CENTA Genus CN: knapweed Genus Authority: L. Genus Summary: A genus of about 500 species, herbs, native of Eurasia and n. Africa. Cyanus is better separated at the generic level (Greuter 2003). Genus References: Keil & Ochsmann in FNA (2006a); Greuter (2003); Boršić et al. (2011); Cronquist (1980)=SE. Key adapted from C, SE, and FNA. [also see Carthamus, Cyanus, Plectocephalus, and Rhaponticum] Last Updated: 2019-11-29 Publish: 1