Index Catalog // ScholarsArchive@OSU

Creator:: Fitzsimmons, Jim P., Burrill, L. C., Oregon State University. Extension Service, Washington State University. Cooperative Extension, University of Idaho. Cooperative Extension System, and United States. Department of Agriculture
Abstract:: Published March 1993. A more recent revision exists. Please look for up-to-date information in the OSU Extension Catalog: https://catalog.extension.oregonstate.edu
Resource Type:: Technical Report

Creator:: Oregon State University. Extension Service, Burrill, L. C., French, Ken, and Oregon. State Department of Agriculture
Abstract:: Published March 1989. A more recent revision exists. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report

Creator:: Oregon State University. Extension Service, Washington State University. Cooperative Extension, University of Idaho. Cooperative Extension Service, United States. Department of Agriculture, Pacific Northwest Cooperative Extension, Fitzsimmons, Jim P., and Burrill, L. C.
Abstract:: Published March 1993. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report

Creator:: Oregon State University. Extension Service, Washington State University. Extension, University of Idaho. Extension, Mallory-Smith, C., Burrill, L. C., Callihan, R. H. (Robert Harold), 1933-, Parker, R., Radtke, H., Pacific Northwest Cooperative Extension, and Coombs, Eric M.
Abstract:: Revised July 1997. Reprinted January 2001. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report

Creator:: Oregon State University. Extension Service, Washington State University. Extension, University of Idaho. Extension, Burrill, L. C., Parker, Robert, 1941-, and Pacific Northwest Cooperative Extension
Abstract:: The Horsetail (Equisetaceae) family comprises 30 species, all in the ancient genus Equisetum. During the Carboniferous age (more than 230 million years ago), the Horsetail family was the dominant plant group in the world, with plants reaching gigantic size. Two basic forms of horsetails survive today. One is the hollow,...
Resource Type:: Technical Report

Creator:: Oregon State University. Extension Service, Washington State University. Extension, University of Idaho. Extension, Butler, M. D. (Marvin D.), Burrill, L. C., and Pacific Northwest Cooperative Extension
Abstract:: Yellow toadflax (Linaria vulgaris) and Dalmatian toadflax (Linaria dalmatica) are members of the figwort (Scrophulariaceae) family. They were introduced into North America as ornamental plants because of their showy, snapdragon-like flowers. Yellow toadflax was brought from Wales in the mid-1800s as a garden flower by Ranstead, a Welsh Quaker who...
Resource Type:: Technical Report

Creator:: Oregon State University. Extension Service, Washington State University. Extension, University of Idaho. Extension, Hulting, Andrew Gerald, Neff, Karin, Coombs, Eric M., Parker, Robert, 1941-, Miller, Glenn A., Burrill, L. C., and Pacific Northwest Cooperative Extension
Abstract:: A bright sign of spring, Scotch broom (Cytisus scoparius) reminds us of its invasive presence each year as many acres of forests, pastures, and rights-of-way burst into golden bloom. Scotch broom is a native of Europe and North Africa, from Great Britain to the Ural Mountains, and from Sweden to...
Resource Type:: Technical Report

Creator:: Oregon State University. Extension Service, Washington State University. Extension, University of Idaho. Extension, Colquhoun, Jed, Fitzsimmons, Jim P., Burrill, L. C., and Pacific Northwest Cooperative Extension
Abstract:: Wild carrot (Daucus carota), also known as Queen Anne’s lace, was introduced from Europe and is the genetic source of edible carrots. It is a problem in perennial cropping systems such as grass seed production, pasture and hay fields, and Christmas tree production. It is an especially serious threat where...
Resource Type:: Technical Report

Creator:: Oregon State University. Extension Service, Washington State University. Extension, University of Idaho. Extension, Roché, Cindy Talbott, Burrill, L. C., and Pacific Northwest Cooperative Extension
Abstract:: Squarrose knapweed, introduced from southwest Asia and the Middle East, became weedy in northern California and Utah by the early 1950s. How it was originally introduced is not known, but its spread in California and Utah was associated with the trailing of range sheep. Squarrose knapweed grows in the Klamath,...
Resource Type:: Technical Report

Creator:: French, Ken, Burrill, L. C., Butler, Tim, 1958-, and Oregon State University. Extension Service
Abstract:: These thistles are native to Europe and the Middle East. Some are not true thistles; for example, purple/Iberian and yellow starthistle actually are knapweeds. All of these plants, however, share a spiny, thorny, invasive nature and long-lasting, hard seed. These traits make people who use or manage land for recreation,...
Resource Type:: Technical Report

ScholarsArchive@OSU