Iris laevigata, known as Japanese iris, rabbit-ear iris or kakitsubata, is a Japanese species of iris related to other members of Iris subgenus Limniris, including other species of Japanese irises. It is found growing in shallow waters and seems to prefer marshy and still ponds although it can also be grown in damp soil if conditions are right. Flowers are usually blue, purple or violet and have unique colour patterns including some types with predominantly white flowers with blue spots, called Washino-o and dark purples bordered with white, called Maikujaku.