Invasive plants are those that are not native to the northeastern United States but have established themselves to such an extent that they out compete native plants for sunlight, water, and soil nutrients. An example is the invasion of the oriental bittersweet (Celastrus orbiculatus) which has supplanted the American bittersweet (C. scandens) in many places. Our goal is to inventory and describe the invasive plants of the WLT/Zofnass Family Preserve so they can be recognized and controlled. The most important preventative in keeping invasive plants under control is to identify and remove them when they are seen at trail heads because once they get established in the interior of the preserve they are extremely difficult to eliminate.
Linden viburnum (Viburnum dilatatum). Formerly placed in the Caprifoliaceae.
Japanese barberry (Berberis thunbergii).
Japanese lonicera (Lonicera japonica).
Border ligustrum (Ligustrum obtusifolium).
Japanese knotweed (Fallopia japonica)
Japanese stiltgrass (Microstegium vimineum).
European alder buckthorn (Rhamnus frangula)
Norway maple (Acer platanoides). The Aceraceae are now placed in the Sapindacee (Stevens, 2001).
Tree-of-heaven (Ailanthus altissimus).
Porcelain-berry (Ampelopsis brevipedunculata).