Muhlenbergiasylvatica is the name of a species, part of the genus Muhlenbergia.
This name is an alternative combination by Torr. ex A.Gray of an original description of species by Torr. under the rules of the International Code of Nomenclature for algae, fungi, and plants (ICN / commonly called the botany code)..
Botany
Revisions
Agrostissylvatica Torr.Agrostissylvatica is the combination used by Torr. in the original description of the species.