Cyclobalanopsis
The "Big Tree" is a species of oak called "Quercus virginiana". These oak trees can be found from Texas to Florida with their range extending northward to Virginia. The common name for the Quercus virginiana is the live oak but includes the names southern live oak and the Texas live oak too. Live oak growth rate and size vary by location. The largest examples tend to grow further inland, while live oaks in coastal regions are usually smaller. Therefore, the size of the "Big Tree" makes it a rare specimen for a coastal location.