Italian Thistle
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Carduus pycnocephalus |
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| Family Name: |
Araceae |
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| Class: | A | |
| Other Names: | Plymouth thistle, shore thistle | |
| Why is it a noxious weed? | Italian thistle invades pastures and rangeland. It crowds out more desirable forage, as well as native plants, and excludes livestock grazing where infestations are dense. | |
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More Information:
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Visit Washington State Noxious Weed Control Board Here
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