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Invasive plant species are found throughout
the Juniata Watershed. This list includes those deemed to be at a moderate
or high threat to the native ecosystem.
Moderate Threats
| Goutweed |
Aegopodium podagraria |
| Cheatgrass |
Bromus tectorum |
| Dame's rocket |
Hesperis matronalis |
| Eurasian water-milfoil |
Myriophyllum spicatum |
| Star-of-Bethlehem |
Ornithogallum nutans, umbellatum |
| Wild Parsnip |
Pastinaca sativa |
| Beefsteak Plant |
Perilla frutescens |
| Reed canary grass |
Phalaris arundinecea |
| Lesser celandine |
Ranunculus ficaria |
| Japanese barberry |
Berberis thunbergii |
| European barberry |
Berberis vulgaris |
| Russian olive |
Elaegnus angustifolia |
| Border privet |
Ligustrum obtusifolium |
| Common privet |
Ligustrum vulgare |
| Bell's honeysuckle |
Lonicera morrowii x tatarica |
| Common buckthorn |
Rhamnus catharticus |
| Glossy buckthorn |
Rhamnus frangula |
| Wineberry |
Rubus phoenicolasius |
| Siberian elm |
Ulmus pumila |
| Fiveleaf akebia |
Akebia quinata |
Serious Threats
| Garlic mustard |
Alliaria petiolata |
| Musk thistle |
Carduus nutans |
| Canada thistle |
Cirsium arvense |
| Bull thistle |
Cirsium vulgare |
| Jimsonweed |
Datura stramonium |
| Purple loosestrife |
Lythrum salicaria, L. virgatum |
| Japanese stilt grass |
Microstegium vimineum |
| Common reed |
Phragmites australis |
| Japanese knotweed |
Polygonum (Falopia) cuspidatum |
| Shattercane |
Sorghum bicolor ssp. drummondii |
| Johnson grass |
Sorghum halepense |
| Autumn olive |
Elaeagnus umbellata |
| Amur honeysuckle |
Lonicera maackii |
| Morrow's honeysuckle |
Lonicera morrowii |
| Tartarian honeysuckle |
Lonicera tartarica |
| Multiflora rose |
Rosa multiflora |
| Tree-of-heaven |
Ailanthus altissima |
| Oriental bittersweet |
Celastrus orbiculatus |
| Japanese honeysuckle |
Lonicera japonica |
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