The original report was written by Nick Rumens and appeared in the Spring 1998 magazine Number 441 on page 12. Click here to read the original report.
| Calystegia sepium | Hedge Bindweed |
| Calystegia silvatica | Large Bindweed |
| Calystegia x lucana | Hybrid |
| Conyza canadensis | Canadian Fleabane |
| Conyza sumatrensis | Guernsey Fleabane |
| Impatiens capensis | Orange Balsam |
| Impatiens glandulifera | Himalayan Balsam |
| Impatiens parviflora | Small Balsam |
| Nepeta cataria | Cat-mint |
| Sagittaria latifolia | Duck Potato |
| Sagittaria sagittifolia | Arrowhead |
| Verbascum densiflorum | Dense-flowered Mullein |