Browse Map

Explore away

Explore Map Collection

Check out our basemaps

Print a Map Plus

Generate a high-quality PDF

Field Guide

Discover local flora, fauna, geology, and more

Local Flora & Fauna

Learn the ecology of your area

Local Geology

Learn the geologic formation at your feet

Get Started or Sign In

Welcome

Continue with Apple

Already have an account? Sign In

MAP

Topo

Measure

Topo

Ecoregions

Public Lands

...

BASEMAPS

Default Weather

Temperature

Smoke

...

WEATHER

Flatwoods

Ecoregion in Atlantic Coastal Plain in TX, LA

Print Map

Generate High-Quality PDF

The Flatwoods ecoregion occurs on mostly flat to gently sloping Pleistocene sediments. Soils are poorly to moderately well drained Alfisols and Ultisols with mostly silt loam textures. They are generally more poorly drained than many areas of Ecoregion 35e to the north, and tend to be less clayey than in 34a to the south. This ecoregion once was dominated by longleaf pine flatwoods and savannas, but also supported other mixed pine-hardwood forest types. The longleaf pine community was characterized by longleaf pine over a great diversity of herbaceous species, with the structure and composition varying from the more open forests of the wet savannas to the more closed forests of the dry flatwoods. Flatwood landscapes are characterized by pimple mounds, small hillocks that are abundant across the flats. On steep slopes, along streams and other areas where fire was less frequent, forests contained loblolly pine, sweetgum, white oak, southern red oak, willow oak, blackgum, and hollies. Although greatly reduced from its original extent, longleaf pine continues to characterize a significant portion of the area. Beech-magnolia was not extensive, occurring in narrow areas along some streams and mesic slopes. This region is warmer, wetter, flatter, less dissected, and lower in elevation than ecoregions 35a and 35e. Streams are low gradient and sluggish. In the eastern part of the region near the boundary with 35g, more loess occurs, the landscape becomes more dissected, and it supports a mixed hardwood-pine forest.

— EPA

Taxonomy

Classified As

Ecoregion