Giant hogweed (Heracleum mantegazzianum Somm. & Lev.)
By: originally written by Cindy Roche, revised by Robert Parker and Timothy W. Miller.
Contributors: Roché, Cindy Talbott.; Parker, Robert.; Miller, Timothy W.; Washington State University. Extension.; University of Idaho. Cooperative Extension System.; Oregon State University. Extension Service.; United States. Dept. of Agriculture.
Edition: Rev. July 2005.
Series: PNW -- 0429.; Weeds; PNW (Series) -- 429.; Weeds (Pacific Northwest Cooperative Extension)
Publisher: Washington State University Cooperative Extension; University of Idaho Cooperative Extension System; Oregon State University Extension Service; U.S. Dept. of Agriculture
Published: 2005
Place of publication: [Pullman, Wash.]; [Moscow, Idaho]; [Corvallis, Or.]; [Washington, D.C.]
Language: eng
Subjects: Giant hogweed -- Oregon.; Giant hogweed -- Washington (State)
Notes: Title from caption.

"A Pacific Northwest Extension Publication."

"Revised July 2005"--P. [2].