We have Wood Sorrel (Oxalis acetosella) growing all around our yard, it is an edible weed and a medicinal herb.The flowers and the leaves of Wood Sorrel plants can be cooked or eaten raw. However the leaves of this plant should not be eaten in large quantities as they contain oxalic acid. Oxalic acid has the ability to bind up the body’s supply of calcium which can lead to nutritional deficiency.
Further, people with a tendency to rheumatism, arthritis, gout, kidney stones, or hyperacidity should be careful when including this plant in their diet since it can aggravate their condition.
Wood sorrel plants grow from rhizomes which must be dug up to prevent them from growing again. The plant grows well in sun and in partial shade, and requires very little care.Medicinally, the dried and fresh leaves of the Wood sorrel are used for treating fevers, and for quenching thirst. The leaves are also applied to boils and abscesses, and some persons use them to treat sore throats and for nausea.