ash collection: https://3dsky.org/collection/shared/5082624 
maple collection: https://3dsky.org/collection/shared/5082608 
Ash Maple | Acer negundo (23m) #1
In the scene one tree is an ash-leaved maple (American)
Polygons: 1 134 220
Leaves using opacity map
Bark material using displacement and is included by default.