Oxydendrum arboreum Sourwood Ericaceae
| FIA distributions (594 counties) quartiles: | min | 1st | mean | median | 3rd | max | rank |
| Diameter, cm (5455 plots) | 0.3 | 4.8 | 10.4 | 8.5 | 14.7 | 85.3 | 68 |
| Growth Rate, cm2/yr (961 plots) | 0.2 | 3.4 | 7.2 | 5.8 | 9.4 | 106.8 | 72 |
| Annual Temperature, °C | 4.8 | 12.4 | 14.4 | 14.5 | 16.4 | 19.5 | 24 |
| January Temperature, °C | -5.5 | 0.7 | 3.4 | 3.5 | 6.0 | 10.7 | 24 |
| Precipitation, mm | 951 | 1160 | 1280 | 1270 | 1400 | 1930 | 12 |
| Potential Evapotranspiration, mm/month | 24.0 | 60.7 | 66.9 | 67.1 | 75.3 | 87.8 | 33 |
| Maximum Elevation, m | 5 | 172 | 459 | 314 | 588 | 2000 | 40 |
| Slope, percent | 0.9 | 7.5 | 15.3 | 11.7 | 21.4 | 51.0 | 8 |
| pH | 2.1 | 3.7 | 4.1 | 4.2 | 4.6 | 6.1 | 75 |
| Permeability, cm/hr | 0.3 | 1.3 | 2.1 | 1.7 | 2.5 | 9.8 | 33 |
| Organic Matter, percent | 0.8 | 1.3 | 2.2 | 1.8 | 2.3 | 34.5 | 66 |
| Clay, percent | 5.8 | 19.6 | 23.8 | 24.0 | 28.5 | 40.9 | 32 |
| Water-Holding Capacity, cm/cm | 3.8 | 6.0 | 6.8 | 6.8 | 7.4 | 11.4 | 64 |