Subject
- Plant communities -- Oregon2
- Botany -- Oregon1
- Cutover lands -- Oregon1
- Douglas fir1
- Forest ecology -- Northwest, Pacific1
- Forest ecology -- Oregon1
- Forest ecology -- Oregon -- H.J. Andrews Experimental Forest1
- Forest regeneration1
- H.J. Andrews Experimental Forest (Or.)1
- Phytogeography -- Oregon -- H.J. Andrews Experimental Forest1
- Plant communities -- Oregon -- H.J. Andrews Experimental Forest1
- Plant communities -- Washington (State)1
- Plant ecology -- Oregon1
- Plant ecology -- Washington (State)1
- Riparian plants -- Cascade Range1
- Riparian plants -- Oregon, Western1
- Trees -- Northwest, Pacific1
- U.S. International Biological Program. Coniferous Forest Biome1