Oxalis acetosella, commonly known as wood sorrel, is a type of edible plant found in many parts of the world. It has a sour taste, which makes it a popular ingredient in many dishes. There are several other names for oxalis acetosella, including common woodsorrel, European wood sorrel, and sourgrass. It is also sometimes referred to as false shamrock due to its resemblance to real shamrocks, which are a symbol of Ireland. The oxalis acetosella plant is known for its clover-shaped leaves and delicate white, pink, or purple flowers. It is often used in herbal medicine to treat a variety of health conditions, from stomach problems to skin irritations.