Panicum stagnatile Hitchc. & Chase Panicum stagnatile Hitchc. & Chase in Contr. U.S. Natl. Herb. 17(6): 528, f. 141. 1915 sec. Dávila & al. 2018=Panicum bernoullianum Mez in Bot. Jahrb. Syst. 56(Beibl. 125): 3. 1921 syn. sec. Dávila & al. 2006