I need help identifying what type of plant this is. I bought some seed for basil, oregano, parsley, etc. and this grew among them. I was wondering what it could be? I live near Toronto if that may help, if its a wild plant?
I'm pretty sure this is one of the smartweeds, similar to Polygonum odoratum, (previously Persicaria odoratum), also known as Vietnamese coriander. Don't take that as gospel, it might be one of the other smartweeds, there's lots of them, but a drawing of P. odoratum showing stem arrangement and the marking on the leaves here https://www.123rf.com/photo_31927479_vietnamese-coriander-polygonum-odoratum-or-persicaria-odoratum.html