In Europe, where this plant is native, it is called gypsywort. It was said that the Romani people used the black stain from the plant to make their skin dark. It has been used medicinally as an astringent, narcotic, and refrigerant. I've remarked before that there are reasons edible wild plants are not found in grocery stores. The same logic applies to wild medicinal plants and pharmacies, although perhaps not as reliably. In modern medicine this has been proven to have positive effect for hyperthyroidism. This alien has been found in AL, DE, IL, IN, LA, MA, MD, MI, MS, NC, NJ, NY, OH, PA, VA, WI, WV, BC, NS, ON, and QC. Lenawee Co MI, 7/28/16.