By taxa

Digitalis purpurea

Pabst, Robert J., Spies, Thomas A. 2001
Ten years of vegetation succession on a debris-flow deposit in Oregon
Pub No: 3074

Parendes, Laurie A., Jones, Julia A. 2000
Role of light availability and dispersal in exotic plant invasion along roads and streams in the H.J. Andrews Experimental Forest, Oregon
Pub No: 2522

Watterson, Nicholas 2004
Exotic plant invasion from roads to stream networks in steep forested landscapes of western Oregon
Pub No: 3807

Watterson, Nicholas A., Jones, Julia A. 2006
Flood and debris flow interactions with roads promote the invasion of exotic plants along steep mountain streams, western Oregon
Pub No: 4019