Hello, and thanks for using the Ask an Expert System,
The plant in your photo is commonly called a purple flowering raspberry or sometimes purple thimbleberry. It is widely distributed in the U.S.
Rubus odoratus L.
Purple-flowering raspberry, Thimbleberry
Rosaceae (Rose Family)
A suckering shrub, 3-6 ft. high and 6-12 ft. wide which forms broad patches. Five-lobed, maple-like, dark green leaves become pale yellow in fall. Large, pinkish-purple flowers occur singly or in few-flowered clusters. Fruit is a broadly rounded, red to purple berry. Canes are thornless, yellow- to orange-brown, and exfoliating. This erect, shrubby, thornless plant has rose-lavender flowers in loose clusters; new branches have bristly hairs.
If you have additional questions I suggest that you contact your local Penn State Extension Office. Venango County Penn State Extension: