[2][3][4][5] It was published by Small in Addisonia (Colored Illustrations and Popular Descriptions of Plants.

Iris hexagona then was left to populations in South Carolina and a few regions in northern Florida.

As the iris can be harvested multiple times a year, it is a good choice for phytostabilisation.

It is found in Atlantic Gulf Coastal Plains (AGCP) and Eastern Mountains and Piedmont (EMP).

[3] It has a greenish-coloured rhizome (2–2.5 cm diameter) with the fiber-like remains of the last season leaves, which branches with ease, forming large open clumps or colonies.

[3][4] It has bright green grass-like leaves, rising from the base of the plant, (approx.

[3][4] They have 6 sharp, wing-like, equally spaced ridges, which converge to form a stout beak at the apex of the capsule.

[3] The seed capsules can be very heavy, for the flowers stems, which then bend down to the ground or water (depending on habitat).

The iris flower has a small flap that protects the stigma, this prevents self-pollination.

When a bee lands on the flower to gather pollen, it brushes past the flap, heading towards the anther.

[5] Iris savannarum is found in the southeastern U.S., specifically in Alabama, Georgia, and Florida.

[12][17] Its main region of distribution is in Florida,[6] where it dominates other iris species, and occurs in many small to medium-sized colonies in many places in the state.