Wildflower - St. John's wort

I found this St. John's wort (Hypericum perforatum) growning next to our barn. There are several species of St John's wort, but the dark dots on the edges of the petals distinguish this plant as common St John's worts from related species.



The flowers have been used as a reddish dye. (If you rub a petal between your fingers, it will leave a dark red-purple stain.) St. John's wort has a history of being used as a medicine dating back to ancient Greece and many people use it today as a supplement. St. John's wort can cause many serious interactions with prescription drugs, herbs, or supplements. Therefore, people using any medications should consult their healthcare providers including their pharmacist prior to starting therapy.