Archives: Non-Native Invasives

Purple Foxglove

European Swallow-Wort

Variable Flatsedge

Japanese Virgin’s-Bower

Crownvetch

Black Swallow-Wort

Creeping Thistle, Californian Thistle, Canada Thistle, Field Thistle

Marsh Thistle, European Swamp Thistle

Oriental Bittersweet

Black Knapweed, Black Star-Thistle, Brown Knapweed, Brown Ray Knapweed, Brown Star-Thistle, Lesser Knapweed, Meadow Knapweed, Protean Knapweed, Short-Fringed Knapweed, Short-Fringed Star-Thistle, Tyrol Knapweed, Vochin Knapweed