| American elm |
Ulmus americana |
2 |
| black locust |
Robinia pseudoacacia |
2 |
| boxelder |
Acer negundo |
2 |
| crabapple and apple |
Malus spp. |
4 |
| hawthorn |
Crataegus spp. |
2 |
| highbush cranberry |
Viburnum opulus ssp. trilobum |
2 |
| honeylocust |
Gleditsia triacanthos |
2 |
| mountain ash |
Sorbus spp. |
2 |
| northern red oak |
Quercus rubra |
2 |
| paper birch |
Betula papyrifera |
2 |
| pin cherry |
Prunus pensylvanica |
2 |
| quaking aspen |
Populus tremuloides |
2 |
| red maple |
Acer rubrum |
2 |
| speckled alder |
Alnus incana ssp. rugosa |
1 |
| staghorn sumac |
Rhus typhina |
2 |
| white ash |
Fraxinus americana |
2 |
| white poplar |
Populus alba |
2 |
| willow |
Salix spp. |
2 |