The majority of the preserve is covered by Texas Live Oak (Quercus fusiformis) and Ashe Juniper (Juniperus ashei)...commonly called "cedar"... woodlands, Live Oak savannah, Texas Red Oak (Quercus buckleyi) woodlands, and open grasslands composed primarily of Sideoats Grama (Bouteloua curtipendula and Little bluestem (Schizachyrium scoparium).