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 5,8,9.
Model at the originPivots at the base of the trunksThere are no groupsNormals are not turned inside outX-form doneTextures and materials have the correct names, without CyrillicNo extra geometry