Iris giganticaerulea is a species of iris

Iris (plant)

Iris is a genus of 260-300species of flowering plants with showy flowers. It takes its name from the Greek word for a rainbow, referring to the wide variety of flower colors found among the many species...

 native to Alabama

Alabama

Alabama is a state located in the southeastern region of the United States. It is bordered by Tennessee to the north, Georgia to the east, Florida and the Gulf of Mexico to the south, and Mississippi to the west. Alabama ranks 30th in total land area and ranks second in the size of its inland...

, Louisiana

Louisiana

Louisiana is a state located in the southern region of the United States of America. Its capital is Baton Rouge and largest city is New Orleans. Louisiana is the only state in the U.S. with political subdivisions termed parishes, which are local governments equivalent to counties...

 and Mississippi

Mississippi

Mississippi is a U.S. state located in the Southern United States. Jackson is the state capital and largest city. The name of the state derives from the Mississippi River, which flows along its western boundary, whose name comes from the Ojibwe word misi-ziibi...

 in the United States

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

.

The plant has 4-6 basal leaves which are 100-130 cm long and 2-3 cm wide. The flowers are typically blue to purple-blue and appear in spring. Lavender and white colour forms are also observed in the wild.

It was declared as the official state wildflower of Louisiana in 1990.