| Name | Callithamnion byssoides var. caulescens J. Agardh |
| Authorship | J. Agardh |
| Rank | Variety |
| NomenclaturalStatus | Unknown |
| Placed in | Callithamnion byssoides Arnott ex Harvey |
| Remarks | Created from Taxon Name Import: Callithamnion byssoides var. caulescens J. Agardh |
| GUID | urn:lsid:marinespecies.org:taxname:552486 |