Iris atropurpurea, the coastal iris (Hebrew: אירוס הארגמן, Irus HaArgaman, meaning "Purple Iris"; Arabic: سوسن أرجواني داكن, Sawsan argwānī al-dākin) is a species in the genus Iris, it is also in the subgenus of Iris and in the section Oncocyclus. It is a rhizomatous perennial, from Israel. It has glaucous (blue-green), linear, falcate (sickle-shaped) leaves. Between February and March, it has between 1 and 2 flowers, in dark shades from red-brown, burgundy, dark purple to blackish purple. They have a darker signal patch and yellow beard tipped with purple. It is rarely cultivated as an ornamental plant in temperate regions, due to it needing very dry conditions.
