| Austrian pine |
Pinus nigra |
4 |
| balsam fir |
Abies balsamea |
1 |
| common juniper |
Juniperus communis |
3 |
| Deodar cedar |
Cedrus deodara |
3 |
| Douglas-fir |
Pseudotsuga menziesii |
3 |
| eastern hemlock |
Tsuga canadensis |
2 |
| eastern redcedar |
Juniperus virginiana |
1 |
| eastern white pine |
Pinus strobus |
4 |
| Japanese cedar |
Cryptomeria japonica |
4 |
| Japanese red pine |
Pinus densiflora |
1 |
| Leyland cypress |
x Cupressocyparis leylandii |
1 |
| limber pine |
Pinus flexilis |
1 |
| Moreton Bay pine |
Araucaria cunninghamii |
4 |
| pine |
Pinus spp. |
4 |
| ponderosa pine |
Pinus ponderosa |
3 |
| Sitka spruce |
Picea sitchensis |
1 |
| sugar pine |
Pinus lambertiana |
1 |
| tall lodgepole pine |
Pinus contorta var. latifolia |
3 |
| western hemlock |
Tsuga heterophylla |
2 |
| western red cedar |
Thuja plicata |
3 |
| yew |
Taxus spp. |
3 |