List of invasive plant species in Pennsylvania

Numerous plants have been introduced to the US state of Pennsylvania in the last four hundred years and many of them have become invasive species that compete with the native plants and suppress their growth.

Description

Invasive species are often grouped by threat levels that vary from county to county from very high impact to remarkable increased growth. The species below are by no means comprehensive and are listed in type order rather than level of threat[1][2][3]

The Pennsylvania Department of Conservation and Natural Resources ranks invasive species into 3 categories based on urgency of threat. [4]

Terrestrial Plants and Trees

Picture Scientific Name Common Name
Acer platanoides Norway maple
Ailanthus altissima tree of heaven
Alliaria petiolata garlic mustard
Aralia elata Japanese Angelica tree
Berberis thunbergii Japanese barberry
Euonymus alatus winged spindle
Lonicera japonica Japanese honeysuckle
Phragmites
Reynoutria japonica Asian knotweed
Rhamnus cathartica buckthorn
Rhodotypos scandens jetbead
Rosa multiflora multiflora rose
Rubus phoenicolasius Japanese wineberry
Saccharum ravennae ravenngrass
Frangula alnus alder buckthorn
Galega officinalis goat's-rue
Heracleum mantegazzianum giant hogweed
Phellodendron cork-tree
Pueraria kudzu
Vincetoxicum nigrum black swallowwort
Vincetoxicum rossicum pale swallowwort
Morus alba white mulberry

See also

References

  1. "Invasive Plant Sheets". Pennsylvania Department of Conservation & Natural Resources. Retrieved October 15, 2019.
  2. "Invasive Species". Landscope America. Retrieved October 15, 2019.
  3. "Invasive and Unwelcome Species". Western Pennsylvania Conservancy. Retrieved October 15, 2019.
  4. Marcus Schenck. "Invasive Plants are Swallowing Pennsylvania". Penn Live, Patriot News. Retrieved October 15, 2019.
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