Detail this asset from Unity Store: Original Link
This is a paid asset, but now you can download European White Birch Package Free.
European White Birch v1.0
These SpeedTree models feature seamless LOD transitions and scalable wind effects that work in Unity out of the box. Package includes:
• Summer, autumn, and winter versions in hero, desktop, and mobile resolutions.
• 47 high-res diffuse/normal/specular maps.
• 11 leaf map maker SPM files (details).
Create limitless variations of each model or design something completely new with a $19 USD/month subscription to the SpeedTree Modeler.
(Scalable wind effects not currently compatible with Unity HDRP)
What makes SpeedTree models more than just a mesh? Click here or see the video below.
User License: Use of this product is subject to the terms of the SpeedTree Model Library Component End User License Agreement