Ulmus americana American Elm Ulmaceae
| FIA distributions (1394 counties) quartiles: | min | 1st | mean | median | 3rd | max | rank |
| Diameter, cm (12536 plots) | 0.3 | 6.6 | 17.8 | 14.5 | 25.4 | 151.6 | 54 |
| Growth Rate, cm2/yr (2587 plots) | 0.1 | 9.2 | 22.3 | 16.3 | 27.9 | 317.0 | 32 |
| Annual Temperature, °C | 1.9 | 8.1 | 11.1 | 11.0 | 13.8 | 20.6 | 59 |
| January Temperature, °C | -18.5 | -6.5 | -2.7 | -2.9 | 1.2 | 11.1 | 59 |
| Precipitation, mm | 382 | 836 | 1030 | 1010 | 1210 | 1620 | 62 |
| Potential Evapotranspiration, mm/month | 12.6 | 51.2 | 63.4 | 63.3 | 74.5 | 123.0 | 52 |
| Maximum Elevation, m | 3 | 242 | 380 | 337 | 457 | 1980 | 16 |
| Slope, percent | 0.0 | 3.6 | 8.9 | 6.5 | 12.3 | 49.8 | 56 |
| pH | 2.4 | 4.3 | 5.2 | 5.2 | 6.1 | 7.9 | 14 |
| Permeability, cm/hr | 0.2 | 1.0 | 2.1 | 1.4 | 2.4 | 14.2 | 62 |
| Organic Matter, percent | 0.9 | 1.8 | 3.9 | 2.5 | 4.4 | 35.1 | 23 |
| Clay, percent | 2.5 | 19.2 | 23.7 | 24.8 | 28.8 | 53.1 | 22 |
| Water-Holding Capacity, cm/cm | 3.6 | 6.6 | 8.2 | 8.3 | 9.8 | 16.1 | 13 |