Delaware Water Gap National Recreation Area (Pennsylvania)
9 Species
| Subject Name | Scientific Name | Family | Nativity |
|---|---|---|---|
| tree-of-heaven | Ailanthus altissima (P. Mill.) Swingle | Simaroubaceae | Exotic |
| garlic mustard | Alliaria petiolata (Bieb.) Cavara & Grande | Brassicaceae | Exotic |
| autumn olive | Elaeagnus umbellata Thunb. | Elaeagnaceae | Exotic |
| purple loosestrife | Lythrum salicaria L. | Lythraceae | Exotic |
| multiflora rose | Rosa multiflora Thunb. | Rosaceae | Exotic |
| tall oatgrass | Arrhenatherum elatius (L.) Beauv. ex J.& K. Presl | Poaceae | Exotic |
| common barberry | Berberis vulgaris L | Berberidaceae | Exotic |
| chocolate vine | Akebia quinata (Houtt.) Dcne. | Lardizabalaceae | Exotic |
| scarlet pimpernel | Anagallis arvensis L. | Primulaceae | Exotic |
