Here is a low poly pack with trees made for a strategy game, for example.

The pack contains the following trees: Birch Oak Rowan Pine Spruce Maple

Trees have animations of rustling and falling.

Birch big ans leafs - 936 poly Birch middle and leafs - 770 poly Birch small and leafs - 558 poly

Oak big ans leafs - 1010 poly Oak middle and leafs - 668 poly Oak small and leafs - 319 poly

Rowan big ans leafs - 806 poly Rowan middle and leafs - 660 poly Rowan small and leafs - 425 poly

Pine big ans leafs - 729 poly Pine middle and leafs - 602 poly Pine small and leafs - 627 poly

Spruce big ans leafs - 959 poly Spruce middle and leafs - 801 poly Spruce small and leafs - 649 poly

Maple big ans leafs - 900 poly Maple middle and leafs - 507 poly Maplee small and leafs - 319 poly

Animation: 1-10 key - rustling leaves 15-25 key - Falling tree