OTHER INVASIVE PLANTS IN ALASKA

bull thistle

Bull thistle found on
the Lower Kenai
Peninsula

Photo: Caleb Slemmons 
(Homer SWCD)

Go BACK to the
 mapping page

Many other invasive plants are just beginning to spread in Alaska. Some of the invasive plants listed below have only been found at a handful sites in Alaska! Check out the links below for more information and contact your local Cooperative Extension office or Soil and Water District to report an infestation.

Canada and Bull thistle
Plant Facts
Canada thistle http://www.ext.colostate.edu/Pubs/natres/03108.html
Bull thistle http://www.cwma.org/nx_plants/bullthistle.htm

Photos
Canada thistle http://tncweeds.ucdavis.edu/esadocs/cirsarve.html
Bull thistle http://www.calflora.net/bloomingplants/bullthistle.html 

Spotted knapweed
Plant Facts
http://www.cwma.org/nx_plants/spot2.htm

Photos
http://tncweeds.ucdavis.edu/esadocs/centmacu.html

Purple loosestrife
Plant Facts
http://www.nps.gov/plants/alien/fact/lysa1.htm

Photos
http://tncweeds.ucdavis.edu/esadocs/lythsali.html

Reed canarygrass
Plant Facts
http://www.ecy.wa.gov/programs/wq/plants/weeds/aqua011.html

Japanese knotweed
Plant Facts
http://www.nps.gov/plants/alien/fact/pocu1.htm

Photos
http://www.adkinvasives.com/terrestrial/PlantID/Knotweed.asp

LINKS

INTRO: Invasive Plants
Taking Root in AK

Exercises, Discussion Topics and More

USDA Plants Database

AK Natural Heritage Program

Statewide CNIPM

 

Kenai Peninsula - Cooperative Weed Management Area

Cooperative Weed 
Management Area

Still want more info? Check out the "Selected Invasive Plants of Alaska" guide.
Soil and Water Conservation District logo Supported by Homer Soil and Water Conservation District, Alaska Association of Conservation
Districts
and US Forest Service - State and Private Forestry