Travel / Thursday, 20-Nov-2025

Watch Out for Dangerous Invasive Plant on Trails this Season

Watch Out for Dangerous Invasive Plant on Trails this Season

Giant hogweed, found in at least 12 states, causes painful blisters and blindness.

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Be on the alert for giant hogweed this year, officials in multiple states warn: The 14-foot-tall, invasive plant’s sap can cause painful blisters, scarring, and blindness if it gets in the eye. Best line of defense: Don’t touch it. Giant hogweed has been found in New York, Washington, Massachusetts, New Hampshire, Maine, and at least seven other states.

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