Quercus falcata var. falcata Southern Red Oak Fagaceae
| FIA distributions (865 counties) quartiles: | min | 1st | mean | median | 3rd | max | rank |
| Diameter, cm (9304 plots) | 0.3 | 6.3 | 22.6 | 21.5 | 34.1 | 134.9 | 32 |
| Growth Rate, cm2/yr (5493 plots) | 0.2 | 13.5 | 26.8 | 22.2 | 33.8 | 281.2 | 15 |
| Annual Temperature, °C | 4.8 | 13.8 | 15.6 | 15.6 | 17.5 | 20.7 | 19 |
| January Temperature, °C | -3.7 | 1.9 | 4.6 | 4.7 | 7.2 | 13.4 | 18 |
| Precipitation, mm | 905 | 1160 | 1270 | 1260 | 1380 | 1930 | 15 |
| Potential Evapotranspiration, mm/month | 24.0 | 66.0 | 72.9 | 73.9 | 80.1 | 107.0 | 21 |
| Maximum Elevation, m | 5 | 122 | 312 | 191 | 365 | 1980 | 63 |
| Slope, percent | 0.5 | 3.3 | 9.8 | 8.2 | 12.9 | 49.8 | 38 |
| pH | 2.1 | 4.0 | 4.4 | 4.5 | 4.9 | 7.0 | 58 |
| Permeability, cm/hr | 0.3 | 1.2 | 2.4 | 1.7 | 3.0 | 10.7 | 38 |
| Organic Matter, percent | 0.8 | 1.3 | 2.2 | 1.7 | 2.1 | 34.5 | 74 |
| Clay, percent | 4.6 | 20.2 | 24.3 | 24.2 | 28.7 | 46.1 | 29 |
| Water-Holding Capacity, cm/cm | 3.6 | 6.3 | 7.3 | 7.0 | 8.3 | 11.4 | 47 |