| 1 | Acaena novae-zelandiae | Pirri-pirri-bur |
| 2 | Acaena ovalifolia | Two-spined Acaena |
| 3 | Acer pseudoplatanus | Sycamore |
| 4 | Aponogeton distachyos | Cape-pondweed |
| 5 | Arthurdendyus triangulata | New Zealand Flatworm |
| 6 | Azolla filiculoides | Water Fern |
| 7 | Branta canadensis | Canada Goose |
| 8 | Carpobrotus edulis | Hottentot-fig |
| 9 | Cervus nippon | Sika Deer |
| 10 | Clematis vitalba | Traveller's Joy |
| 11 | Cornus sericea | Red-osier Dogwood |
| 12 | Cotoneaster horizontalis | Wall Cotoneaster |
| 13 | Cotoneaster integrifolius | Entire-leaved Cotoneaster |
| 14 | Crassula helmsii | New Zealand Pigmyweed |
| 15 | Crocosmia pottsii x aurea = C. x crocosmiiflora | Montbretia |
| 16 | Didemnum | none |
| 17 | Dreissena polymorpha | Zebra Mussel |
| 18 | Egeria densa | South American Waterweed |
| 19 | Elodea canadensis | Canadian Waterweed |
| 20 | Elodea nuttallii | Nuttall's Waterweed |
| 21 | Eriocheir sinensis | Chinese Mitten Crab |
| 22 | Fallopia japonica | Japanese Knotweed |
| 23 | Fallopia sachalinensis | Giant Knotweed |
| 24 | Gammarus pulex | Freshwater Shrimp |
| 25 | Gammarus tigrinus | Freshwater Shrimp |
| 26 | Glyceria maxima | Reed Sweet-grass |
| 27 | Gunnera tinctoria | Giant-rhubarb |
| 28 | Heracleum mantegazzianum | Giant Hogweed |
| 29 | Hippophae rhamnoides | Sea Buckthorn |
| 30 | Hottonia palustris | Water-violet |
| 31 | Hyacinthoides hispanica | Spanish Bluebell |
| 32 | Hyacinthoides non-scripta x hispanica = H. x massartiana | none |
| 33 | Hydrocotyle ranunculoides | Floating Pennywort |
| 34 | Impatiens glandulifera | Himalayan Balsam |
| 35 | Juncus planifolius | Broad-leaved Rush |
| 36 | Lagarosiphon major | Curly Waterweed |
| 37 | Lemna minuta | Least Duckweed |
| 38 | Lepus europaeus | European Hare |
| 39 | Leuciscus cephalus | Chub |
| 40 | Leuciscus leuciscus | Dace |
| 41 | Libertia formosa | Chilean-iris |
| 42 | Lonicera japonica | Japanese Honeysuckle |
| 43 | Lupinus polyphyllus | Garden Lupen |
| 44 | Lysichiton americanus | Yellow Skunk-Cabbage |
| 45 | Mustela vison | American Mink |
| 46 | Mycelis muralis | Wall Lettuce |
| 47 | Myriophyllum aquaticum | Parrot's Feather |
| 48 | Nymphoides peltata | Fringed Water-lily |
| 49 | Oxyura jamaicensis | Ruddy Duck |
| 50 | Perca fluviatilis | Perch |
| 51 | Petasites fragrans | Winter Heliotrope |
| 52 | Physella acuta | None |
| 53 | Picea sitchensis | Stika Spruce |
| 54 | Pinus contorta | Lodgepole Pine |
| 55 | Prunus laurocerasus | Cherry-laurel |
| 56 | Rhododendron ponticum | Rhododendron |
| 57 | Rosa rugosa | Japanese Rose |
| 58 | Rubus spectabilis | Salmonberry |
| 59 | Rutilus rutilus | Roach |
| 60 | Sagittaria rigida | Canadian Arrowhead |
| 61 | Sargassum muticum | Wire Weed |
| 62 | Sciurus carolinensis | Grey Squirrel |
| 63 | Sedum album | White Stonecrop |
| 64 | Spartina anglica | Common Cord-grass |
| 65 | Symphoricarpos albus | Snowberry |
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