| Name | Helwingia japonica subsp. formosana (Kanehira & Sasaki) H. Hara & S. Kurosawa |
| Authorship | (Kanehira & Sasaki) H. Hara & S. Kurosawa |
| Rank | Subspecies |
| Placed in | Helwingia japonica (Thunberg) F. Dietrich |
| Citation | 1975 Fl. E. Himalaya 3rd Rep.: 403 |
| Holdings | 8 Specimens held in the Harvard University Herbaria identified as Helwingia japonica subsp. formosana (Kanehira & Sasaki) H. Hara & S. Kurosawa |
| Identification made in | [no date] (8) |