| Name | Polygonum caespitosum Blume |
| Authorship | Blume |
| Rank | Species |
| Placed in | Polygonum Linnaeus |
| Contains | Polygonum caespitosum var. longisetum (Bruijn) Danser |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Polygonum caespitosum Blume |
| Identification made in | [no date] (1) |