Hippuris Vulgaris

Hippuris vulgaris, commonly known in the USA as common mare’s tail or simply mare’s tail, is a perennial aquatic or semi-aquatic plant. It is primarily found in shallow waters of ponds, lakes, and calm river margins.

The plant is known for its simple, unbranched stems and whorled leaves, which give it a distinctive appearance reminiscent of a horse’s tail.

While it does not have significant ornamental or commercial value, it is sometimes used in constructed wetlands for water purification.

H. vulgaris is not generally considered invasive or problematic, although it can form dense stands in favorable conditions. The plant typically grows to a height of 30 to 60 cm (12 to 24 inches) above the water surface. Its leaves are small, linear, and arranged in whorls around the stem. The flowers are inconspicuous, lacking petals, and are wind-pollinated. The fruit is a small, hard nutlet that is seldom noticed. The stem is erect, simple, and unbranched, with a smooth texture.

It can be partially or entirely submerged, depending on water depth. As an aquatic plant, H. vulgaris requires a consistent water environment and does not need additional watering. It thrives in full sun to partial shade conditions. Propagation is typically through division of the rhizomes or from seeds.

The plant is not known to be poisonous or toxic to humans, dogs, or cats, and it does not cause skin irritations. In summary, Hippuris vulgaris is a rootless aquatic plant with distinctive features, often found in calm water habitats