WEED ID

NOTE: This page represents 2006 Montana listed weeds by category. Montana listed weeds are now listed by priority species.

Montana's 2010 noxious weed list is available here.

Category 1
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Click on the weed photo to access:

• Identifying characteristics
• A quick reference to effective management strategies

	Canada thistle
	Field bindweed
	Hoary cress (whitetop)
	Leafy spurge
	Russian knapweed
	Spotted knapweed
	Diffuse knapweed
	Dalmatian toadflax
	St. Johnswort
	Sulfur cinquefoil
	Common tansy
	Oxeye daisy
	Houndstounge
	Yellow toadflax

Category 2

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	Dyer's woad
	Purple loosestrife
	Tansy ragwort
	Meadow hawkweed
	Orange hawkweed
	Tall buttercup
	Saltcedar (tamarisk)
	Perennial pepperweed

Category 3

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	Yellow starthistle
	Common crupina
	Rush skeletonweed
	Yellowflag iris
	Eurasian watermilfoil