Maapinnale kaarduvate tugevalt ogaliste puitunud vartega, mis tipul juurduvad, pikkus 50-200 cm. Lehed kolmetised, lehekesed sakilise servaga. Õied valged, viietised. Vili must, sinaka kirmega, koosneb väikestest lihakatest osaviljadest (koguluuvili).
a species of flowering plant in the rose (Rosaceae) family, related to the blackberry
In the eastern and southern United States, several native species, especially the northern dewberry (Rubus flagellaris), the bristly dewberry (R. hispidus), and the southern dewberry (R. trivialis), produce excellent fruits. The European dewberry (R. caesius) has blue-tinged fruits that are generally less palatable.