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Trails & Invasive Plants

Trails & Invasive Plants. Protecting our resources while enjoying our trails. What is an invasive plant?. Non-Native Plant Any plant not known to historically occur in an area.  Only a small percent of non-native plants are invasive. Weed Any plant growing in an undesirable location.

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Trails & Invasive Plants

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  1. Trails & Invasive Plants Protecting our resources while enjoying our trails

  2. What is an invasive plant? • Non-Native Plant • Any plant not known to historically occur in an area.  Only a small percent of non-native plants are invasive. • Weed • Any plant growing in an undesirable location. • Noxious Weed • Weeds that have been legally designated as pests by a listing authority. A legal term. • Invasive Plant • Non-native plants that exhibit aggressive growth that displaces other plants or animals.

  3. What do weeds impact? • Plant communities • Wildlife habitat • Water resources • Fisheries • Recreation • Natural processes • Local and State economy

  4. Why is this important? • At home in your yard, you can pull a weed. • In a natural area millions of acres in size, it may not be immediately discovered and pulled, especially if this weed is off a trail deep in a natural area or wilderness. • Many species are not controllable manually, and populations may explode if uncontrolled by other means. • Invasive plants are the second greatest threat to biodiversity after habitat loss.

  5. Activities that spread weeds • Motorized travel • Driving • Boating • ORV use • Recreation • Hiking • Fishing • Horseback riding • Disturbance • Construction • Wildfire • Natural events

  6. What are our species of concern? • Refer to the Worst Weeds of the Gorge booklet for a reference to the top invasive species of concern in the Columbia River Gorge National Scenic Area, as well as surrounding lands on the Gifford Pinchot National Forest and the Mt. Hood National Forest.

  7. What should you do? Take action! • Be Aware and Prepare • Clean and check clothing and gear • Brush animals • Weed free feed • Identify invasive plants in the area • Report it!

  8. As Trailhead Ambassadors, you will be perfectly placed to alert visitors to the importance of weed prevention. Taking simple steps to clean clothing, gear and animals will dramatically reduce the chance that a visitor will become a weed vector. Thank you!

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