More ash trees: https://3dsky.org/collection/shared/5251731 

Five young ash trees 5.3 6 6.4 7.4 and 8.2 meters high.
There are two versions of the material in the scene – summer and autumn.
To get a bare tree delete polygons with ID 589.

Model at the origin
Pivots at the base of the trunks
There are no groups
Normals are not turned inside out
X-form done
Textures and materials have the correct names without Cyrillic
No extra geometry
The archive files max (177 MB) fbx and jpeg (36 MB)
Number of triangles (Editable Mesh) – 3 379 525
Number of points – 3 110 117