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'''Iris giganticaerulea''' ('Giant Blue Iris' or 'Giant Blue Flag') is a species of iris native to Alabama, Louisiana and Mississippi in the United States.
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.

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References

References

★ Flora of North America: ''Iris giganticaerulea''

★ Louisiana Laws: RS 49:154.1 - State wildflower

★ ''Iris giganticaerulea'' Small (Giant blue iris)