| Name | Croton williamsii Rusby |
| Authorship | Rusby |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Croton Linnaeus |
| GUID | urn:lsid:ipni.org:names:343761-1 |
| Citation | 1912 Bull. New York Bot. Gard. 8: 100 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Croton williamsii Rusby |
| Identification made in | [no date] (1), 2009 (1) |