Family CN: Grass Family Family Code: POACEA Family Parent: [in POALES] Family Authority: (R. Brown) Barnhart 1895 or GRAMINEAE A.L. de Jussieu 1789 Summary: A family of about 771 genera and 12,074 species, herbs (and some shrubs and trees), cosmopolitan. Tribal classification largely follows FNA (2003a, 2007a), with some changes based on subsequent research, as for instance in the Chloridoideae (Peterson, Romaschenko, & Johnson 2010a). Reference: Flora of North America Editorial Committee (2003a, 2007a)=FNA; Hitchcock and Chase (1950)=HC; Blomquist (1948); Peterson, Romaschenko, & Johnson (2010a, 2010b). Key to genera adapted in large part from FNA. Last Updated: 2020-01-01 Publish: 1