| Name | Gigartina exasperata Harvey & Bailey |
| Authorship | Harvey & Bailey |
| Rank | Species |
| NomenclaturalStatus | Unknown |
| Placed in | Gigartina Stackhouse |
| Contains | Gigartina exasperata f. microphylla (Harvey) Collins |
| Remarks | Created from Taxon Name Import: Gigartina exasperata Harvey & Bailey |
| Holdings | 8 Specimens held in the Harvard University Herbaria identified as Gigartina exasperata Harvey & Bailey |
| Identification made in | [no date] (8) |