| Name | Bistorta suffulta subsp. pergracilis (Hemsley) Soják |
| Authorship | (Hemsley) Soják |
| Rank | Subspecies |
| Placed in | Bistorta suffulta (Maximowicz) Greene ex H. Gross |
| Citation | 1974 Preslia 46(2): 152 |
| Holdings | 12 Specimens held in the Harvard University Herbaria identified as Bistorta suffulta subsp. pergracilis (Hemsley) Soják |
| Identification made in | [no date] (11), 2025 (1) |
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