For Glyceria
Barkworth, M.E., and L.K. Anderton. 2007. Glyceria. In Flora of North America Editorial Committee. 2007a. Flora of North America north of Mexico. Volume 24, Magnoliophyta: Commelinidae (in part): Poaceae, part 1. Oxford Univ. Press, New York, NY. 911 pp.
Tucker, G.C. 1996. The genera of Poöideae (Gramineae) in the southeastern United States. Harvard Papers in Botany 9: 11-90.