| Name | Asarum constrictum F. Maekawa |
| Authorship | F. Maekawa |
| Rank | Species |
| Placed in | Asarum Linnaeus |
| Citation | 1932 Bot. Mag. (Tokyo), Special Issue 46: 576, f. 9 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Asarum constrictum F. Maekawa |
| Identification made in | 2016 (3) |