| australia | new south wales | helminthocladia australis | species | 4 | 0 |
| australia | tasmania | helminthocladia australis | species | 1 | 0 |
| australia | victoria | helminthocladia australis | species | 1 | 0 |
| taiwan | | helminthocladia australis | species | 2 | 0 |
| taiwan | taiwan municipality | helminthocladia australis | species | 1 | 0 |