| Name | Croton sclerocalyx (Didrichsen) Müller Argoviensis |
| Authorship | (Didrichsen) Müller Arg. |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Croton Linnaeus |
| Contains | Croton sclerocalyx var. hirsutissimus Müller Argoviensis Croton sclerocalyx var. intermedius Müller Argoviensis |
| Citation | 1865 Linnaea 34: 134 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Croton sclerocalyx (Didrichsen) Müller Argoviensis |
| Identification made in | [no date] (2), 2009 (1) |