This plant is endemic in North-America and used in both the garden and aquariums. Used in the last way it can stay a nice, small, submerged plant. As a marsh-plant it may get 1 m tall with big, heart-shaped, bright green leaves and in summer-beginning autumn elegantly curved (like lizard’s tails) spikes with white, fragrant little flowers. The plant develops out of up tot 2 cm diam. thick root-stocks. A great marsh- or pond-edge plant for a spot in wet soil to shallow water and in moderately fertile pons-soil and sun. Good winter-hardy.