Christopher Weeks wrote:If I saw that volunteer in my garden, my first thought would be Solanum nigrum. (which excites me more than tomatoes, but I'd keep it either way. And I don't know if that even grows where you are.)
After your comment I started to rethink my animosity towards the black nightshade and relatives.
I decided to spare any I found, and maybe even spread them.
After all, I've not been able to eradicate them and yet my volunteer tomatoes haven't been affected yet.
Even if they are, the results might be magical.
So now I have some Wonderberries growing in my nursery pots!