Oxalis courtepin, also known as Curly Dock or Wood Sorrel, is a perennial plant native to North America. It grows as a low rosette of bright green foliage, with long, arching stems that have star-shaped yellow flowers in the spring. The leaves are distinctively crinkled, resulting in their common name of “Curly Dock.” Oxalis courtepin has a long history of being used as a medicinal plant, with traditional applications for the treatment of rheumatism, scurvy, and other ailments. More recently, the plant has been studied as a potential treatment for diabetes. The plant’s high levels of antioxidants make it a potential treatment for conditions associated with oxidative stress, such as cancer, cardiovascular disease, and age-related decline. Despite its traditional uses, oxalis courtepin should be used with caution as its consumption in large amounts may be toxic.