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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