Family Oxalidaceae is a group of plants that is known for its beautiful foliage and vibrant flowers. Sometimes referred to as the wood-sorrel family, the Oxalidaceae includes a variety of different species, each with their own unique characteristics. Some common synonyms for this family include the shamrock family or the sourgrass family. These names reflect the fact that many species in the Oxalidaceae have leaves that resemble a clover or shamrock shape, and they often exude a slightly sour taste. Whatever you call them, members of the Oxalidaceae family are sure to add a touch of color and life to any garden or landscape.