| algeria | | ruppia drepanensis | species | 1 | 0 |
| australia | | ruppia maritima | species | 2 | 0 |
| australia | new south wales | ruppia megacarpa | species | 1 | 0 |
| australia | south australia | ruppia megacarpa | species | 2 | 0 |
| australia | victoria | ruppia megacarpa | species | 9 | 0 |
| canada | | ruppia maritima | species | 2 | 0 |
| canada | british columbia | ruppia cirrhosa | species | 6 | 0 |
| canada | quebec | ruppia maritima | species | 2 | 0 |
| china | | ruppia maritima | species | 5 | 0 |
| croatia | | ruppia maritima | species | 2 | 0 |
| cyprus | | ruppia sp. lt-rh24 | species | 1 | 0 |
| democratic republic of the congo | | ruppia maritima | species | 2 | 0 |
| egypt | | ruppia cirrhosa | species | 1 | 0 |
| egypt | | ruppia sp. lt-rh20 | species | 1 | 0 |
| estonia | | ruppia maritima | species | 1 | 0 |
| france | | ruppia cirrhosa | species | 3 | 0 |
| france | | ruppia maritima | species | 4 | 0 |
| france | | ruppia sp. lt-cam1 | species | 1 | 0 |
| greece | | ruppia cirrhosa | species | 4 | 0 |
| greece | | ruppia maritima | species | 2 | 0 |
| india | | ruppia maritima | species | 2 | 0 |
| israel | | ruppia sp. lt-rh25 | species | 1 | 0 |
| italy | | ruppia cirrhosa | species | 1 | 0 |
| italy | | ruppia maritima | species | 17 | 0 |
| italy | sicily autonomous region | ruppia cirrhosa | species | 1629 | 0 |
| italy | sicily autonomous region | ruppia drepanensis | species | 163 | 0 |
| italy | sicily autonomous region | ruppia maritima | species | 1 | 0 |
| japan | | ruppia maritima | species | 3 | 0 |
| japan | aomori prefecture | ruppia maritima | species | 1 | 0 |
| japan | chiba prefecture | ruppia maritima | species | 1 | 0 |
| japan | hokkaido prefecture | ruppia maritima | species | 1 | 0 |
| japan | niigata prefecture | ruppia megacarpa | species | 1 | 0 |
| japan | tokyo prefecture | ruppia maritima | species | 1 | 0 |
| malta | | ruppia maritima | species | 8 | 0 |
| mexico | | ruppia cirrhosa | species | 1 | 0 |
| mexico | | ruppia didyma | species | 1 | 0 |
| mexico | | ruppia mexicana | species | 2 | 0 |
| portugal | | ruppia maritima | species | 1 | 0 |
| portugal | faro district | ruppia cf. maritima jg-2016 | species | 3 | 0 |
| portugal | faro district | ruppia cirrhosa | species | 5 | 0 |
| portugal | faro district | ruppia cirrhosa x ruppia cf. maritima jg-2016 | species | 4 | 0 |
| russia | primorsky krai | ruppia maritima | species | 1 | 0 |
| south africa | the western cape province | ruppia bicarpa | species | 5 | 0 |
| south africa | the western cape province | ruppia maritima | species | 13 | 0 |
| south korea | jeju province | ruppia maritima | species | 1 | 0 |
| spain | | ruppia cirrhosa | species | 8 | 0 |
| spain | | ruppia drepanensis | species | 4 | 0 |
| spain | | ruppia maritima | species | 16 | 0 |
| spain | andalusia | ruppia cf. maritima jg-2016 | species | 3 | 0 |
| spain | andalusia | ruppia cirrhosa | species | 5 | 0 |
| spain | andalusia | ruppia drepanensis | species | 3 | 0 |
| spain | balearic islands | ruppia cirrhosa | species | 2 | 0 |
| spain | murcia | ruppia cirrhosa | species | 6 | 0 |
| spain | murcia | ruppia cirrhosa x ruppia cf. maritima jg-2016 | species | 4 | 0 |
| sweden | | ruppia cirrhosa | species | 2 | 0 |
| thailand | | ruppia maritima | species | 2 | 0 |
| united kingdom | | ruppia cirrhosa | species | 5 | 0 |
| united kingdom | scotland | ruppia maritima | species | 1 | 0 |
| united states | | ruppia cirrhosa | species | 1 | 0 |
| united states | | ruppia maritima | species | 4 | 0 |
| united states | texas | ruppia maritima | species | 2 | 0 |
| vanuatu | | ruppia maritima | species | 2 | 0 |
| vietnam | | ruppia brevipedunculata | species | 1 | 0 |