New England trees and shrubs with opposite compound leaves: two leaves grow from each stem node and each leaf has smaller leaflets.
There are just a few species in New England in this leaf form category, making identification fairly easy. Eight trees and shrubs are covered:
White Ash (Fraxinus americana)
Black Ash (Fraxinus nigra)
Green Ash (Fraxinus pennsylvanica)
Ash-leaved Maple (Box Elder) (Acer negundo)
Horsechestnut (Aesculus hippocastanum)
American Bladdernut (Staphylea trifolia)
Common Elderberry (Sambucus nigra)
Red Elderberry (Sambucus racemosa)