Phone: 503-823-7740
Fax: 503-823-6995
1120 SW 5th Avenue, Room 1000, Portland, OR 97204
Treatment Species
The city is managing these species for eradication.
Blessed Milk Thistle
Silybum marianum
Giant Hogweed
Heracleum mantegazzianum
Policeman's Helmet
Impatiens glandulifera
Orange Hawkweed
Hieracium auranticum
Goatsrue
Galega officinalis
False-Brome
Brachypodium sylvaticum
Water Primrose
Ludwigia peploides ssp. montevidensis and L. hexapetala