| Name | Polygonum ramosissimum subsp. prolificum (Small) Costea & Tardif |
| Authorship | (Small) Costea & Tardif |
| Rank | Subspecies |
| Placed in | Polygonum ramosissimum Michaux |
| Citation | 2003 Sida 20(3): 995 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Polygonum ramosissimum subsp. prolificum (Small) Costea & Tardif |
| Identification made in | [no date] (1) |
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