| Name | Mallotus barbatus var. congesta F. P. Metcalf |
| Authorship | F. P. Metcalf |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Mallotus barbatus Müller Argoviensis |
| Citation | 1931 Lingnan Sci. J. 10: 487 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Mallotus barbatus var. congesta F. P. Metcalf |
| Identification made in | [no date] (2) |