Etymological Dictionary of Grasses - Harold T. Clifford, Peter D. Bostock - Google Books

https://books.google.de/books?id=FQRHAAAAQBAJ&printsec=frontcover&dq=Etymological+Dictionary+of+Grasses&hl=de&sa=X&redir_esc=y#v

As employed here the term grass applies only to species included in the Poaceae, one of the largest families of flowering plants. However, the word is often applied to any herbaceous plant with long, narrow leaves. A similar view was adopted by the…