hi people
i have few pics of an oak, but i'm puzzled cuz i don't know what is this ball thingy..
i would like to know species or at least some more info please
>>2038689
oak gall
it's an insect home.
thank you Anon
>>2038692
Oh, I always thought they were tumors...
>>2038692
Good for making ye olde iron gall ink.
>>2038760
It is a tumor in fact. Something the insects inject it with causes the tumors to grow, providing them with shelter.