This is 512x512 texture of autumn birch tree which replaces Ashenvale canopy tree texture. The game has 2 Ashenvale textures of different resolution. One for canopy trees and other for ordinary, so it can be used for normal Ashenvale trees as well even if it was not originally intended.
🔨 Hive's 3D Viewer has been updated! 🔨 It now supports MDX1100 which should fix a lot of issues when viewing HD models in our 3D Viewer. We encourage you to check it out for yourself and report any issues you find in the Site Discussion board.