Annual and perennial sowthistles, Sonchus oleraceus, S. asper, S. uliginosus, S. arvensis
By: authors: R.W. Downard and D.W. Morishita.
Contributors: Morishita, Don W.; University of Idaho. Cooperative Extension System.; Oregon State University. Extension Service.; Washington State University. Cooperative Extension.; United States. Dept. of Agriculture.
Series: PNW -- 476.; Weeds; PNW (Series) -- 476.; Weeds (Pacific Northwest Cooperative Extension)
Publisher: University of Idaho Cooperative Extension System; Oregon State University Extension Service; Washington State University Cooperative Extension; U.S. Dept. of Agriculture
Published: 1995
Place of publication: [Moscow, Idaho]; [Corvallis, Or.]; [Pullman, Wash.]; [Washington, D.C.]
Language: eng
Subjects: Sow thistles -- Control -- Northwestern States.
Other titles: Sonchus oleraceus, S. asper, S. uliginosus, S. arvensis.
Notes: Title from caption.

"February 1995"--P. [4]

"A Pacific Northwest extension publication."