Populus tremuloides Quaking Aspen Salicaceae
| FIA distributions (403 counties) quartiles: | min | 1st | mean | median | 3rd | max | rank |
| Diameter, cm (15682 plots) | 0.3 | 12.7 | 21.6 | 22.1 | 29.6 | 90.4 | 30 |
| Growth Rate, cm2/yr (4927 plots) | 0.2 | 9.0 | 15.6 | 13.9 | 20.1 | 93.9 | 43 |
| Annual Temperature, °C | 1.9 | 5.2 | 6.5 | 6.5 | 7.8 | 11.9 | 76 |
| January Temperature, °C | -18.5 | -11.2 | -8.6 | -8.0 | -5.7 | -0.8 | 77 |
| Precipitation, mm | 382 | 761 | 873 | 832 | 1010 | 1300 | 75 |
| Potential Evapotranspiration, mm/month | 17.9 | 40.5 | 45.8 | 46.1 | 51.0 | 71.4 | 73 |
| Maximum Elevation, m | 52 | 355 | 508 | 422 | 585 | 1860 | 13 |
| Slope, percent | 0.0 | 3.9 | 8.2 | 6.7 | 11.9 | 30.9 | 55 |
| pH | 2.8 | 4.3 | 5.3 | 5.3 | 6.3 | 7.9 | 9 |
| Permeability, cm/hr | 0.2 | 1.9 | 3.8 | 3.3 | 4.8 | 14.2 | 12 |
| Organic Matter, percent | 1.7 | 3.7 | 7.2 | 5.5 | 9.2 | 35.1 | 5 |
| Clay, percent | 3.0 | 8.6 | 14.7 | 14.5 | 19.7 | 47.3 | 74 |
| Water-Holding Capacity, cm/cm | 3.6 | 5.7 | 7.4 | 7.2 | 8.9 | 16.1 | 33 |