Broad-leaved rush - Juncus planifolius
Butterfly Bush - Buddleja davidii
Canadian-fleabane - Conyza canadensis
Canadian Waterweed - Elodea canadensis
Cape pondweed - Aponogeton distachyos
Cherry laurel - Prunus laurocerasus
Chilean rhubarb - Gunnera tinctoria
Clover broomrape - Orobanche minor
Cordgrass - Spartina (all species and hybrids)
Creeping Bellflower - Campanula rapunculoides
Curly Waterweed - Lagarosiphon major
Dead man's fingers - Codium fragile ssp. tomentosoides
Douglas fir - Pseudotsuga menziesii
Dwarf eel-grass - Zostera japonica
False acacia - Robinia pseudoacacia
Fanwort - Cabomba caroliniana
Field penny-cress - Thlaspi arvense
Floating Pennywort - Hydrocotyle ranunculoides
Fringed Water-Lily - Nymphoides peltata
Garden lupin - Lupinus polyphyllus
Giant Hogweed - Heracleum mantegazzianum
Giant Knotweed - Fallopia sachalinensis
Giant Salvinia - Salvinia molesta
Giant-Rhubarb - Gunnera tinctoria
Hairy rocket - Erucastrum gallicum
Himalayan Balsam - Impatiens glandulifera
Himalayan honeysuckle - Leycesteria formosa
Himalayan Knotweed - Persicaria wallichii
Holm oak - Quercus ilex
Hottentot-Fig - Carpobrotus edulis
Japanese barberry - Berberis thunbergii
Japanese honeysuckle - Lonicera japonica
Japanese Kelp (Wakame) - Undaria pinnatifida
Japanese Knotweed - Fallopia japonica
Japanese rose - Rosa rugosa
Large-flowered waterweed - Egeria densa
Leafy spurge - Euphorbia esula
Least duckweed - Lemna minuta
Mile-a-minute weed - Persicaria perfoliata
Narrow-leaved ragwort - Senecio inaequidens
New Zealand bur - Acaena ovalifolia
New Zealand Pigmyweed - Crassula helmsii
Nuttallii Waterweed - Elodea nuttallii
Ostrich fern - Matteuccia struthiopteris
Pampas grass - Cortaderia selloana
Parrots Feather - Myriophyllum aquaticum
Pitcherplant - Sarracenia purpurea
Red alga - Grateloupia doryphora
Red oak - Quercus rubra
Rhododendron - Rhododendron ponticum
Rock cotoneaster - Cotoneaster horizontalis
Rum cherry - Prunus serotina
Russian-vine - Fallopia baldschuanica
Salmonberry - Rubus spectabilis
Sea-buckthorn - Hippophae rhamnoides
Spanish Bluebell - Hyacinthoides hispanica
Sycamore - Acer pseudoplatanus
Three-cornered leek - Allium triquetrum
Traveler's-joy - Clematis vitalba
Tree of heaven - Ailanthus altissima
Turkey oak - Quercus cerris
Virginia-creeper - Parthenocissus quinquefolia
Wakame - Undaria pinnatifida
Warty cabbage - Bunias orientalis
Water Chestnut - Trapa natans
Water Fern - Azolla filiculoides
Water Lettuce - Pistia stratiotes
Water-primrose - Ludwigia (all species)
Waterweeds - Elodea (all species)
Wild parsnip - Pastinaca sativa
Wireweed - Sargassum muticum
