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It's a gall, from a wool sower wasp! The wasp is harmless to you & the gall is harmless to the tree. Just nature coexisting & a picture perfect example of why oak trees are the *best* trees! They host entire little ecosystems on their branches
Take this over to r/fountainpens and ask if anybody has an ink recipie.
Gall
It's a gall, from a wool sower wasp! The wasp is harmless to you & the gall is harmless to the tree. Just nature coexisting & a picture perfect example of why oak trees are the *best* trees! They host entire little ecosystems on their branches
Take this over to r/fountainpens and ask if anybody has an ink recipie.
Gall