• Common name : Woods Sorrel
• Scientific name : Oxalis arenaria
• Family : Oxalidaceae
• Native land : South America
It is a perennial herb. Wood sorrel has adapted to grow in forest shade. It is a fragile rhizome with creeping characteristics. Its leaves have long stalks with three leaflets and flowers have five petals. The flowers appear in shades of white, yellow, lavender, or rose. The fruit is capsule-shaped. It blooms in spring and again in autumn. The flowers have some ornamental value. The flowers are preferred by insects, but the plant has poisonous effect on human beings. When ingested in large quantities, the leaves may cause trembling and cramps.