This generic "swap" has very serious ramifications. Spartina alterniflora is an widespread, species which is considered highly invasive in coastal ecosystems. It is well-known outside the botanical or even "grass" literature, by the name Spartina. Changing this generic allocation will cause great confusion in places that have developed monitoring programs for the spread of this species. If it is necessary for some "higher' reason to make this change, I suggest that [Spartina] be included in the documentation to forestall chaos in the fields other than grass systematics.