Iris bismarckiana

About

Iris bismarckiana, the Nazareth iris, is a species in the genus Iris, it is also in the subgenus Iris and in the section Oncocyclus. It is a rhizomatous perennial, from the mountainsides of Israel, Jordan, Lebanon, and Syria. It has stoloniferous, spreading rhizomes, long, sword shaped, bright green leaves, long slender stem and 1 flower in Spring. The large flower is pale yellow, creamy-white, or white background. Which is covered with reddish-brown, maroon brown, purple-brown, purple, blue-purple, or blue veins, markings or spots. It has a dark signal patch and dark purple to black beard. It is rarely cultivated as an ornamental plant in temperate regions, as it needs very dry conditions during the summer.

Summary from Wikipedia