Bittersweet Nightshade
Solanum dulcamara

Black Knapweed
Centaurea nigra

Blackthorn
Prunus spinosa

Canada Waterweed
Elodea canadensis

Common Buckthorn
Rhamnus cathartica

Common Reed Grass
Phragmites australis ssp. australis

Common Valerian
Valeriana officinalis

Cypress Spurge
Euphorbia cyparissias

Flowering Rush
Butomus umbellatus

Garlic Mustard
Alliaria petiolata

Giant Hogweed
Heracleum mantegazzianum

Glossy Buckthorn
Frangula alnus

Himalayan Balsam
Impatiens glandulifera

Japanese Knotweed
Fallopia japonica

Leafy Spurge
Euphorbia esula

Multiflora Rose
Rosa multiflora

Oriental Bittersweet
Celastrus orbiculatus

Periwinkle
Vinca minor

Purple Loosestrife
Lythrum salicaria

Scotch Broom
Cytisus scoparius

Sycamore Maple
Acer pseudoplatanus

Wild Cucumber
Echinocystis lobata

Wild Parsnip
Pastinaca sativa

Woodland Angelica
Angelica sylvestris

Yellow Flag Iris
Iris pseudacorus