ID via @zihaowang
ID via @zihaowang
Linear bracts on umbelets. No visible bracts coming out of the main point of attachment of the umbel. Leaf sheaths with white fringes. Ribbed / grooved seeds and fruit.
https://www.minnesotawildflowers.info/flower/fools-parsley
https://www.sciencedirect.com/science/article/abs/pii/B9780128243152006163
Plant contains coniine, similar to Poison hemlock. According to one paper, 3 mg of coniine produce symptoms in humans. Apparently, 6 to 8 leaves of this plant can be tolerated...