Invasive Vine SpeciesBlack Swallow-Wort
Herbaceous perennial that is a member of the Milkweed (Asclepiadaceae) family. Introduced in the 1930s and grows rapidly over native vegetation.
Invasive Bittersweet
Deciduous; woody, twining vine that is a member of the Bittersweet (Celastraceae) family. Can hybridize with American bittersweet, making it a genetic threat to the native species. It may impact host species by reducing photosynthesis and girdling trees.
Pale Swallow-Wort
Herbaceous perennial that is a member of the Milkweed (Asclepiadaceae) family. Grows rapidly over native vegetation and has wind-dispersed seeds that travel long distances.