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COUNTY MAPS

Clackamas

Clatsop

Columbia

Lane

Linn

Marion

Multnomah

Polk

Tillamook

Washington

Yamhill

 

giant hogweed information

 

 

giant hogweed (Heracleum mantegazzianum)

Multnomah County, Oregon

ALERT: PLEASE CALL 1-866-INVADER IF YOU SUSPECT YOU HAVE FOUND THIS SPECIES

updated 3/08

Property of the WeedMapper Team, Dept. of Rangeland Ecology & Management, Oregon State University. Copyright 2004. All rights reserved. Design by STP.