| Name | Croton sclerocalyx var. hirsutissimus Müller Argoviensis |
| Authorship | Müller Arg. |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Croton sclerocalyx (Didrichsen) Müller Argoviensis |
| GUID | urn:lsid:ipni.org:names:70849-2 |
| Citation | 1865 Linnaea 34: 134 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Croton sclerocalyx var. hirsutissimus Müller Argoviensis |
| Identification made in | [no date] (1), 2009 (1) |