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  1. Washington State Noxious Weed Control Board

    • Puncturevine is a toxic and invasive plant with sharp spines that can damage animals, people and tires. Learn how to identify, control and prevent this weed in pastures, roadsides, waste places and cultivate… See more

    Why Is It A Noxious Weed?

    Puncturevine is a toxic plant and a serious weed in pastures, roadsides, waste places and cultivated fields. The spines of the fruit can cause damage to animals and people. It's sharp s… See more

    Washington State Noxious Weed Control Board
    Where Does It Grow?

    Puncturevine is found in pastures, roadsides, waste places, parks, agricultural areas. Please click hereto see a county level distribution map of puncturevine in Washington.… See more

    Washington State Noxious Weed Control Board
    How Does It reproduce?

    Puncturevine reproduces by seed, which typically germinate from April to October, depending on conditions. Seeds commonly germinate after rainfall or irrigation. Seed production … See more

    Washington State Noxious Weed Control Board
    How Do I Control It?

    Puncturevine spreads by seed so controlling plants prior to seed production is critical to prevent further seed entering the seedbank. When working in puncturevine infestations… See more

    Washington State Noxious Weed Control Board
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