Browsing Extension Service -- Pacific Northwest Extension Publishing by Author "Parker, Robert"

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Paterson's curse, Echium pantagineum in the Pacific Northwest

Oregon State University. Extension Service; Washington State University. Extension; University of Idaho. Extension; Hulting, Andrew Gerald; Krenz, Jennifer E.; Parker, Robert; Pacific Northwest Cooperative Extension ([Covallis, Or.] : Oregon State University Extension Service, 2007-10)

Paterson’s curse is a member of the borage family (Boraginaceae). It is native to Mediterranean Europe and North Africa but has spread to southern Africa, South and North America, Australia, and New Zealand. Outside of i ...
Poison oak and poison ivy : Rhus diversiloba T. & G. and Rhus radicans L.

Burrill, L. C.; Callihan, R. H. (Robert Harold), 1933-; Parker, Robert; Washington State University. Cooperative Extension; Pacific Northwest Cooperative Extension ([Pullman, WA] : Washington State University Cooperative Extension, 1994-05)

Poison oak is common in western Oregon and Washington. Its near relative, poison ivy, is found in eastern Oregon and Washington, throughout Idaho, and eastward. Both plants are native to the Pacific Northwest.
Scotch broom, Cytisus scoparius (L.) Link

Oregon State University. Extension Service; Washington State University. Cooperative Extension; University of Idaho. Cooperative Extension System; Parker, Robert; Miller, Glenn; Burrill, Larry C. ([Covallis, Or.] : Oregon State University, Extension Service, 1994-07)