| Name | Alnus japonica (Thunberg) Steudel |
| Authorship | (Thunberg) Steudel |
| Rank | Species |
| Placed in | Alnus |
| Citation | 1840 Nomencl. Bot. (Steudel) (ed. 2): 1: 55 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Alnus japonica (Thunberg) Steudel |
| Identification made in | [no date] (3) |