Walhalla Ravine:
Invasive Plants

Barberry:

Buckthorn:

Burning Bush :

CrownVetch:

English Ivy :

Garlic Mustard:

Seedlings look a bit like Wild Ginger, which is a desirable native plant. Wild Ginger has smoother edges and a brighter color.
Wild Ginger:

Tatarian Honeysuckle :

Japanese Honeysuckle :

Japanese Knotweed :

Lesser Celandine :

Multiflora Rose :

Periwinkle, Myrtle, Vinca Major:

Privet:

Purple Loosestrife:

Tree of Heaven:

Winter Creeper (Euonymous):