The original report was written by Carol and Bill Hawkins and appeared in the Spring 2004 magazine Number 459 on pages 18, 19 and 20. Click here to read the original report.
| Amaranthus retroflexus | Common amaranth |
| Angelica archangelica | Garden Angelica |
| Aster tripolium | Sea Aster |
| Bidens connata | London bur-marigold |
| Bidens frondosa | Beggarticks |
| Bidens tripartita | Trifid Bur-marigold |
| Chenopodium ambrosioides | Mexican tea |
| Chenopodium bonus-henricus | Good King Henry |
| Cotula coronopifolia | Buttonweed |
| Egeria densa | Large-flowered Waterweed |
| Elytrigia atherica | Sea Couch |
| Euphorbia prostrata | Prostrate Spurge |
| Euphorbia x pseudovirgata | Twiggy Spurge |
| Glaux maritima | Sea Milkwort |
| Hydrocotyle ranunculoides | Floating Pennywort |
| Ipomoea purpurea | Common Morning Glory |
| Lapsana communis ssp.intermedia | Nipplewort |
| Medicago sativa ssp. varia | Sand Lucerne |
| Medicago ssp. sativa | Lucerne |
| Medicago ssp.falcata | Sickle medick |
| Panicum miliaceum | Common Millet |
| Persicaria capitata | Pink-headed Knotweed |
| Phalaris canariensis | Canary Grass |
| Rumex cristatus | Greek dock |
| Salvia verticillata | Whorled Clary |
| Schoenoplectus tabernaemontani | Grey Clubrush |
| Securigera varia | Crown Vetch |
| Senecio inaequidens | Narrow-leaved Ragwort |
| Setaria pumila | Yellow Bristle-grass |
| Sisymbrium irio | London Rocket |
| Solarium chenopodioides | Tall Nightshade |
| Sorbaria kirilo-wii | Chinese sorbaria |
| Trifolium fragiferum | Strawberry Clover |
| Vallisneria spiralis | Tapegrass |