Deep East Texas.
Catahoula Barrens are rare communities of East Texas and Louisiana that have developed on shallow, coarse soils over the Catahoula formation. They are characterized by a specialized flora, and trees exist as scattered, highly stunted individuals. Large areas of bare ground, rock, and lichens are typically present. Due to the rarity of these communities and the specialized requirements of the plants found here, many are species of conservation concern.