• Photo of the Beaver Marsh by Jeffrey Gibson.

    Cuyahoga Valley

    National Park Ohio

There are park alerts in effect.
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  • Valley Picnic Area Park Lot CLosed - Plateau Trail Loop Affected

    Valley Picnic Area Parking Lot is closed for the replacement of the damaged culvert on the Plateau Trail, from dusk on Monday, September 22 to 5 p.m., Thursday, October 2, 2014. Access to Plateau Trail is via the Oak Hill Trailhead. Loop unavailable.

  • Other Closures

    Valley Bridle Trail south of SR 303, across from golf course, is collapsed by river. Hard closure. Plateau Trail Bridge, north of Valley Picnic Area is closed. No detours. Plateau & Oak Hill trails are open. More »

Invasive Plants

Natural resource managers consider invasive species one of the biggest threats to the health of natural habitats. Active control of these plants is necessary to keep national parks a refuge for native plants and animals.

What is a non-native invasive plant species?
Non-native plants are plants growing in an area where they do not naturally occur. Non-native plants have been brought to North America from other continents for use in agriculture, gardening, erosion control, and medicine, or simply by accident. For more information see the Invasive Plants site bulletin.

Many non-native plants are considered invasive. Invasive plants have the following characteristics: they reproduce rapidly, spread over large areas of the landscape, and have few, if any, natural controls, such as herbivores and diseases, to keep them in check. These plants displace native plants and may disrupt the local balance of nature. For example, Japanese honeysuckle may crowd out native shrubs, eliminating songbird habitat. Some native plants have also become invasive due to habitat changes caused by human land use.

Which plants are considered invasive in Cuyahoga Valley National Park?
Currently, 16 non-native plants are considered to be invasive within the park. These plants invade a broad range of habitats, from forests and meadows to wetlands and disturbed roadsides. Click on the common names for more information about each plant.

Scientific Name Common Name
Elaeagnus umbellata autumn olive

Rhanmus cathartica, R. frangula


Lonicera maackii, L. morrowii, L. tatarica bush honeysuckles
Phragmites australis common reed
Alliaria petiolata garlic mustard
Berberis Thunbergii Japanese barberry
Lonicera japonica Japanese honeysuckle
Polygonum cuspidatum Japanese knotweed
Rosa multiflora multiflora rose
Typha angustifolia narrow-leaved cattail
Ligustrum vulgare privet
Lythrum salicaria purple loosestrife
Phalaris arundinacea reed canary grass

Where can I find more information?
More extensive information about invasive species on public lands is available from the U.S. Department of Agriculture. In addition, the Ohio Department of Natural Resources has invasive plant fact sheets specific to this state.

How are we addressing the invasive plant problem?
Cuyahoga Valley National Park is developing a volunteer-based, long-term exotic plant monitoring and controlling program. This program features the adoption of sections of the park by volunteers who are trained to look for and control invasive plants. It is a great chance for volunteers to experience the lesser known areas of the park while helping to conserve our native plant communities. If you are interested in participating in this program, please contact Chris Davis, Park Botanist. Visit the Exotic Plant Management Volunteer Program web page to learn more.

Did You Know?

Photo of Bald Eagle taken in Cuyahoga Valley National Park where an eagle pair built their first nest in 2006. Photo by Martin Trimmer.

November is the time to be on the lookout for bald eagles performing aerial courtship displays. Once eagles have selected each other, they plunge through the air in very high dives, locking their talons and breaking apart just when it looks as though they will crash to the ground.