| Author | Bigelow | |
| Distribution | Weakley (2024) has this species listed as occurring in NC. SERNEC has specimens from Catawba County from 1956. This seems to be a recent split, or at least a re-defined split. As a result, the species is very poorly known to regional botanists, and its NC range is not known.
"ME and MN south to NC, SC, TN, AR, and OK" (Weakley 2024).
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| Abundance | Completely unknown, but this is clearly a more Northern species, common in the Ohio Valley states and some states to our north. Thus, probably genuinely rare in NC; Weakley's (2024) map shows it as "rare" in the state's Piedmont only. However, the website editors simply give a State Rank of SU = Undetermined. | |
| Habitat | "Old fields, fencerows" (Weakley 2024). | |
| Phenology | Not known. | |
| Identification | See the key in Weakley (2024). | |
| Taxonomic Comments | This taxon was one of many included within the huge R. pensilvanicus/argutus complex. Though iNaturalist lists this as a species (with no NC photos), NatureServe does not have it in its database.
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| Other Common Name(s) | Leafy-flowered Blackberry | |
| State Rank | [SU] | |
| Global Rank | GNA | |
| State Status | | |
| US Status | | |
| USACE-agcp | | |
| USACE-emp | | |