| Name | Galium rupifragum Ehrendorfer |
| Authorship | Ehrendorfer |
| Rank | Species |
| Placed in | Galium Linnaeus |
| Citation | 2010 Novon 20(3): 273 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Galium rupifragum Ehrendorfer |
| Identification made in | 2018 (1) |