It could be Queen Anne's Lace (Daucus carota) or it could be Poison Hemlock (Conium maculatum). They look a lot alike so no tasting. In fact, some people have poisoned themselves just pulling Hemlock up with bare hands. Queen Anne's Lace does smell pleasantly of carrots.
I am leaning towards Queen Anne's Lace because of the fine little hairs on the leaf.