Springtape

Sagittaria kurziana, common names springtape and strap-leaf sagittaria, is a perennial aquatic plant. It grows up to 250 centimetres tall. It has long, narrow, flat leaves that float on the surface of the water, up to 250 cm long but rarely more than 15 millimetres wide. These form huge masses of ribbon-like leaves flowing back and forth with the current. Inflorescences also float on the surface, the white flowers very often submerged.