St. John's wort plant (Hypericum perforatum) on Merry Christmas Mine Hill in Mineral Point, Wisconsin.
Photographed early July 2022. Original keys: IMG_9457 and IMG_9458
Merry Christmas Mine Hill is part of the Pendarvis State Historic Site in Mineral Point. Pendarvis contains historical structures, artifacts and educational features that focus on the lead and zinc mining history of the area.
Hypericum perforatum is in the Hypericaceae family (also known as the St. John's wort family) and the Malpighiales order. Originally native to Eurasia and North Africa, it has spread worldwide. Considered a weed or invasive in some areas.