Iris lactea is a species in the genus Iris, it is also in the subgenus Limniris. and the series Ensatae, it is the only species in the series. The Japanese water iris, Iris ensata, is actually in series Laevigatae. It is a rhizomatous perennial, from central Asia, with pale blue or violet flowers. It is cultivated as an ornamental plant in temperate regions.
Iris lactea has a thick creeping rhizome, that is covered in reddish purple fibres.It grows to a height of between, 3–50 cm (1–18 in), with ...