Equisetum arvense is a perennial herb belonging to the Equisetaceae family, usually growing in moist and wetlands. It has existed since prehistoric times and is known for both its medicinal and industrial uses. The leaves of the horsetail plant are thin and scaly, arranged in rings around the stem. The plant is mostly recognised by its stems rather than its leaves. The stems are long, cylindrical and jointed. Each joint is divided into segments and is known for its silicic acid content. The horsetail plant spreads by means of horizontal roots called rhizomes, which go deep into the soil. Equisetum arvense does not bloom flowers. Instead, the reproductive organs are represented by cone-shaped structures called sporangia. Horsetail prefers moist and water-saturated soils. It is commonly found in areas such as lakesides, marshes and stream beds.