| Species | Recipient region | Date of the first record | |
|---|
| Spartina townsendii var. anglica | Ireland | 1925 |  |
| Spartina townsendii var. anglica | United Kingdom (Britain) / Celtic seas | 1850 - 1859 | |
| Spartina townsendii var. anglica | France / Celtic seas | 1894 | |
| Spartina townsendii var. anglica | United Kingdom (Britain) / English Channel | 1850 - 1859 | |
| Spartina townsendii var. anglica | Netherlands | 1924 | |
| Spartina townsendii var. anglica | Germany / North Sea | 1927 | |
| Spartina townsendii var. anglica | Denmark / North Sea | 1930 - 1940 | |
| Spartina townsendii var. anglica | Denmark / Baltic Sea | 1948 - 1953 | |
| Spartina townsendii var. anglica | Sweden / North Sea | From 2007 | |
| Spartina townsendii var. anglica | Belgium | 1920 - 1929 | |
| Spartina townsendii var. anglica | France / North Sea | To 1990 | |
| Spartina townsendii var. anglica | France / Biscay Gulf | 1924 | |
| Spartina townsendii var. anglica | France / English Channel | 1894 | |
