This mod simply replace some pine trees.
This gives more variety to skyrim's forest, they now look like the forest i know, these which you can find in my country


It's possible that you will find some tree flying (however it shouldn't happen ). If you find a flying tree, open the console and "disable" the tree.
I didn't check the very forest of skyrim, so I don't know where you can find these trees. 

Install this mod by putting the files in your data folder
Uninstall this mod by removing all the files you put in your data folder

PS:Sorry for my english, I'm from France and sorry for the shitty quality of my screenshots


EDIT1: I didn't saw but the first version had a problems with the collision of the trees. now it has been fixed