Myriophyllum alterniflorum
Alternate Water-milfoil
Myriophyllum spicatum
Spiked Water-milfoil
Nasturtium officinale
Water-cress
Nuphar lutea
Yellow Water-lily
Nymphoides peltata
Fringed Water-lily
Oenanthe crocata
Hemlock Water-dropwort
Pedicularis sylvatica
Lousewort
Persicaria hydropiper
Water-pepper
Persicaria minor
Small Water-pepper
Persicaria mitis
Tasteless Water-pepper
Petasites hybridus
Butterbur
Phalaris arundinacea
Reed Canary-grass
Populus nigra
Black-poplar
Potamogeton crispus
Curled Pondweed
Potamogeton lucens
Shining Pondweed
Potamogeton natans
Broad-leaved Pondweed
Ranunculus aquatilis
Common Water-crowfoot
Ranunculus fluitans
River Water-crowfoot
Ranunculus peltatus
Pond Water-crowfoot
Ranunculus sceleratus
Celery-leaved Buttercup
Reynoutria japonica
Japanese Knotweed
Ribes nigrum
Black Currant
Rorippa sylvestris
Creeping Yellow-cress
Rumex maritimus
Golden Dock