u/Sleepy-Emu546

We have a lot of this plant coming up along our fence line with next door (we just have lawn down so not something we have planted). I've tried to Google image search but each image suggests a different plant. The roots seem really long and run parallel along the fence line from what I can tell. Anyway, I wanted to work out if it's something likely to be really invasive and if so how to deal with it etc. also that it's not something poisonous as we have 2 dogs and a kiddo who has pica. So if anyone can help me id it I would be very grateful - thank you!