Ecological Threats
Each natural community faces ecological threats that could change its defining features, leading to its decline.
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Non-Native Invasive Plants
- sweet wormwood* (low plant)
- Mexican-tea* (low plant)
- oriental lady’s-thumb* (low plant)
- spiny pigweed* (low plant)
Diseases, Pests, and Other Threats
Learn more about some of the ecological threats to the natural communities of Harpers Ferry National Historical Park.
See Making a Difference to learn about some of the ways park staff are addressing these threats—and ways you can help, too.