Wipff, 2010. Barkworth et al. (eds.), Flora of North America Vol. 25 Document reference Wipff, J. K., 2010. Pennisetum. Barkworth et al. (eds.), Flora of North America Vol. 25Web http://herbarium.usu.edu/webmanualCitation key Wipff, 2010Datasheets Nigeria grass (Pennisetum pedicellatum)