| Name | Crouania attenuata var. australis Harvey |
| Authorship | Harvey |
| Rank | Variety |
| Placed in | Crouania attenuata (C. Agardh) J. Agardh |
| Citation | 1855 Trans. Roy. Irish Acad. 22: 558 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Crouania attenuata var. australis Harvey |
| Identification made in | [no date] (1) |