U.S. Department of Agriculture1. Tree ring widths and diameter at breast height of green ash (Fraxinus pennsylvanica Marsh.) growing in a provenance planting established in 1978 in northern Vermont, USA
- Author(s):
- Murakami, Paula F.; Butnor, John R.
2. Demography of ancient western juniper (Juniperus occidentalis var. occidentalis) trees on Horse Ridge in central Oregon, USA
- Author(s):
- Loehman, Rachel A.; Heyerdahl, Emily K.; Pederson, Gregory T.; McWethy, David B.
3. Mountain hemlock tree-ring width chronologies from the western Oregon Cascade Mountains
- Author(s):
- Heyerdahl, Emily K.