| Name | Argythamnia laevis (A. Gray ex Torrey) Müller Argoviensis |
| Authorship | (A. Gray ex Torrey) Müller Arg. |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Argythamnia P. Browne |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Argythamnia laevis (A. Gray ex Torrey) Müller Argoviensis |
| Identification made in | [no date] (1) |