Called Yellow Woodsorrel, Lemon Clover, False Shamrock and "Sourgrass." Yellow Woodsorrel is an herbaceous plant native to North America. It tends to grow in woodlands, meadows, and in disturbed areas as both a perennial and annual. All parts of the plant are edible, with a distinct tangy flavor (as is common in all plants in the genus Oxalis). The leaves and flowers of the plant are sometimes added to salads for decoration and flavoring. These can also be chewed raw (along with other parts of the plant, but not the root) as a thirst-quencher. The green pods are pleasant raw, having a juicy crisp texture and a tartness similar to rhubarb in flavor. The leaves can be used to make a flavored drink that is similar in taste to lemonade, and the whole plant can be brewed as herbal tea that has an aroma somewhat like that of cooked green beans. The juices of the plant have been extracted from its greens as a substitute to common vinegar. Oxalis stricta contains large amounts of vitamin C. Medicinal uses A poultice of the plant has been used to treats wellings.