Stands of common cord grass (Spartina anglica) can be found on estuaries in Wales but have a“non-significant presence”, i.e., the stands tend to be small and comprise the non-native common cord grass (Spartina anglica). Spartina anglica is a vigorous species, which arose in England at the end of the 19th century by the natural hybridization of S. alterniflora and S. maritima.