| Name | Polygonum tomentosum var. incanum (F. W. Schmidt) Gürke |
| Authorship | (F. W. Schmidt) Gürke |
| Rank | Variety |
| Placed in | Polygonum tomentosum Schrank |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Polygonum tomentosum var. incanum (F. W. Schmidt) Gürke |
| Identification made in | [no date] (1) |