Iris wattii is a species in the genus Iris, it is also in the subgenus of Limniris and the Lophiris section (crested irises). It is a rhizomatous perennial plant. It is native to China, Burma and India, it has lavender or light blue flowers. It is also known as 'Bamboo Iris' (although confusingly, so is Iris confusa). It is cultivated as an ornamental plant in temperate regions.