Stems trailing, shrubby and perennial, often several feet long, armed with numerous or very few prickles. Branches erect, 4 to 12 inches long, slightly pubescent, often prickly and glandular. Leaves three to seven-foliate, usually three-foliate; leaflets ovate or ovate-lanceolate, thin, pointed at the apex, rounded or narrowed at the base, sharply toothed. Flowers few in terminal racemes, white, about 1 inch broad; the five petals usually as long or slightly longer than the calyx lobes. Fruit black, usually at least one-half of an inch long and sometimes 1 inch long, fine flavored but with large seeds.
In dry soil, especially in sandy sections, Nova Scotia to Ontario and Michigan, south to Virginia, Louisiana and Oklahoma. Flowering in May and June. Fruit ripe in June and July.
A similar species, Rubus hispidus Linnaeus (Hispid or Running Swamp Blackberry), with the stems densely beset with weak, retrorse bristles, is also common in swamps and low grounds throughout our area.
Memoir 15 N. Y. State Museum
B. Dewberry; Low Running Blackberry - Rubus procumbens