Subject
- Bryophytes -- Oregon2
- Cheatgrass brome -- Great Basin2
- Fusarium diseases of plants -- Oregon -- Willamette River Valley2
- Fusarium oxysporum -- Oregon -- Willamette River Valley2
- Host-fungus relationships2
- Lichens -- Oregon2
- Mycorrhizas2
- Native prairie2
- Native species2
- Phytophthora -- Oregon, Western2
- Plant ecology2
- Plant succession -- Oregon2
- Plant-fungus relationships2
- Plants -- Effect of herbicides on -- Oregon -- Willamette River Valley2
- Plants -- Phylogeny2
- Pseudotsuga2
- Regeneration ecology2
- Seedling establishment2
- Sweet corn -- Diseases and pests -- Oregon -- Willamette River Valley2
- Acclimatization (Plants)1