Devil's club are very poisonous. Don't eat leaves or stems, thorns. It also can change insulin work in the body for whose who are sick with diabetes.
This is Aronia melanocarpa. But most likely you have black Chokeberry. ---------------------------------------------------------- purpura bacca
From one picture it's hard to say, but i think this is Gaultheria. ------------------------------------------------------------------------...
The last photo seems like Buckthorn shrub. ----------------------------------------- purpura bacca
