| Name | Polygonum hastatosagittatum Makino |
| Authorship | Makino |
| Rank | Species |
| Placed in | Polygonum Linnaeus |
| Citation | Bot. Mag. (Tokyo) 17: 119 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Polygonum hastatosagittatum Makino |
| Identification made in | 2015 (2) |