Panicum columbianum var. thinium (Hitchcock & Chase) Hitchcock & Chase

Panicum columbianum var. thinium (Hitchcock & Chase) Hitchcock & Chase is a synonym sensu Thomas, 2015 of:

Dichanthelium portoricense (Desvaux ex Hamilton) B.F. Hansen & Wunderlin, an accepted species name sensu Soreng et al., 2000+.