It looks like lovage in my garden. The thing about herbs, though, is we can’t identify something with pictures well enough to actually tell you to eat it. You need an in-person ID.
Lovage is a very distinctive scent and flavor. Once you know it, you won’t forget. It’s a pungent musky version of celery leaves (just my stab at a description). Possibly an herb grower at farmers market sells it for you to compare? I’m not sure where else to suggest you find some.
Again, don’t eat this until you have a positive identification.