Celtis occidentalis Hackberry Ulmaceae
| FIA distributions (751 counties) quartiles: | min | 1st | mean | median | 3rd | max | rank |
| Dimeter, cm (3035 plots) | 0.3 | 5.3 | 18.0 | 15.2 | 26.6 | 185.9 | 52 |
| Growth Rate, cm2/yr (504 plots) | 0.3 | 12.2 | 26.1 | 21.3 | 34.7 | 164.4 | 16 |
| Annual Temperature, °C | 3.7 | 9.7 | 11.5 | 11.7 | 13.1 | 19.6 | 52 |
| January Temperature, °C | -16.5 | -5.5 | -2.8 | -2.6 | -0.3 | 10.5 | 58 |
| Precipitation, mm | 462 | 858 | 998 | 987 | 1150 | 1610 | 67 |
| Potential Evapotranspiration, mm/month | 36.7 | 58.1 | 67.4 | 65.9 | 75.4 | 127.0 | 36 |
| Maximum Elevation, m | 7 | 261 | 363 | 335 | 423 | 1860 | 30 |
| Slope, percent | 0.6 | 4.0 | 8.9 | 6.9 | 12.6 | 43.3 | 48 |
| pH | 2.8 | 4.4 | 5.3 | 5.3 | 6.3 | 7.9 | 9 |
| Permeability, cm/hr | 0.2 | 0.9 | 1.6 | 1.2 | 1.8 | 12.5 | 74 |
| Organic Matter, percent | 0.9 | 1.9 | 2.9 | 2.4 | 3.2 | 18.4 | 30 |
| Clay, percent | 4.0 | 23.0 | 26.4 | 26.4 | 30.3 | 48.9 | 6 |
| Water-Holding Capacity, cm/cm | 3.6 | 6.9 | 8.5 | 8.6 | 10.2 | 12.6 | 7 |