why cant i paint trees

why cant i paint my trees? i can see it here http://prntscr.com/m3rxxf Lightshot Screenshot

but its not showing on the terrain its not the scaling http://prntscr.com/m3ry4b Lightshot Screenshot

since you can see the tree here without scale adjusted (dont laugh its a test) its also not the material since just the cube isnt showing http://prntscr.com/m3rylq Lightshot Screenshot

and here is the hirearchy of the meshes the white one without materials also doesnt work