Iris longiscapa is a plant species in the genus Iris, it is also in the subgenus Iris and in the section Hexapogon. It is a rhizomatous perennial from the deserts of Kazakhstan, Tajikistan, Turkmenistan and Uzbekistan. They have grass-like leaves and lilac-violet or blue-purple flowers on a tall slender stem. It is cultivated as an ornamental plant in temperate regions.