Subject
- Endangered plants -- Oregon, Western -- Genetics1
- Endangered plants -- Population viability analysis -- Oregon, Western1
- Fender's blue butterfly -- Larvae -- Food -- Oregon, Western1
- Fire ecology -- Oregon -- Willamette River Valley1
- Grassland ecology -- Oregon -- Willamette River Valley1
- Grassland plants -- Ecology -- Oregon -- Willamette River Valley1
- Grassland plants -- Effect of fires on -- Oregon -- Willamette River Valley1
- Habitat restoration1
- Invasive plants -- Dispersal -- Oregon -- Willamette River Valley1
- Invasive plants -- Propagation -- Oregon -- Willamette River Valley1
- Mountain plants -- Cascade Range1
- Mountain plants -- Oregon1
- Native prairie1
- Native species1
- Old growth forests -- Oregon -- Cascade Range1
- Oregon lupine -- Oregon, Western -- Genetics1
- Oregon lupine -- Population viability analysis -- Oregon, Western1
- Oregon, Western1
- Plant competition -- Oregon -- Willamette River Valley1
- Plant ecology1