Hippuris vulgaris

Common mare's-tail is an exotic deciduous perennial aquatic plant with a columnar, upright, bushy habit. It produces green to yellow flowers and has foliage that may be submerged. Commonly used in aquatic landscapes, it is suited to ponds, wetlands, and water features where it can grow partially or fully submerged. It can also be incorporated into habitat plantings for aquatic environments. Grows to approx. 0.6m H x 0.6m W.