Found 44 Forest CC0 textures in library

Bark 004
Bark Brown 01
Bark Brown 02
Bark Willow
Bark Willow 02
Beam Wall 01
Brown Mud Leaves 01
Brown Mud Rocks 01
Camouflage 1
Dirt Floor
Forest
Forest Brown Marble 1
Forest Floor
Forest Ground 01
Forest Ground 03
Forest Ground 04
Forest Ground 2
Forest Leaves 03
Forest Sand 01
Gravel 015
Ground 004
Ground 005
Ground 011
Ground 012
Ground 015
Ground 018
Ground 019
Ground 020
Ground 023
Ground 024
Ground 028
Ground 037
Ground 038
Ground 053
Japanese Sycamore
Leaf Set 021
Leaves Forest Ground
Mud Forest
Palm Tree Bark
Pine Needles 001
Roots
Stick Set 001
Tree End 003
Wooden Rough Planks