Synonyms: Panicum beyrichii; Panicum dispersum; Panicum expansum (heterotypic); Panicum hirsutum (heterotypic); Panicum hirsutum var. beta; Panicum lasianthum; Panicum multinodosum; Panicum patentissimum (heterotypic); Panicum pilosum (heterotypic); Panicum rugulosum; Panicum rugulosum f. effusum; Panicum rugulosum var. glabrescens; Panicum rugulosum var. lasianthum; Panicum rugulosum var. pubescens; Panicum rugulosum var. subvelutinum; Panicum sellowii var. longevaginatum; Panicum sellowii var. longivaginatum; Panicum sellowii var. subvelutinum; Panicum subglobosum