Bristly Blackberry (Rubus hispidus) August 16, 2020 1500 × 1200 Bristly Blackberry (Rubus hispidus) Bristly Blackberry (Rubus hispidus). Rosaceae family. Native. Also called Swamp Dewberry. Meadows, fields, wetland margins, forest edges. June, 2019. Montauk, New York.