Panicum imbricatum Hillebr. var. oreoboloides Whitney, Occas. Pap. Bernice P. Bishop Mus. 13(16): 173. 1937. Type information: Holotype [BISH]. C.N. Forbes 184.K. August 1909. Kaua`i: Wahiawa Swamp. Isotype(s) [BISH!, US [2]].