Panicum comosum Steud., Syn. Pl. Glumac. 1: 53. 1853 Panicum comosum Steud., Syn. Pl. Glumac. 1: 53. 1853is earlier homonym of Panicum comosum Steud., Syn. Pl. Glumac. 1: 417. 1854This name is not assigned to any taxon.