Family Code: POACEA Genus Code: DIARR Genus CN: beakgrain Genus Authority: P. Beauv. Genus Summary: Depending on circumscription, a genus of either 2 species of perennial grasses of e. North America, or of ca. 6 species of e. North America and e. Asia. Genus References: Brandenburg in FNA (2007a); Brandenburg, Estes, & Collins (1991)=Z. Key from Z. Last Updated: 2019-11-29 Publish: 1