Ranunculus sardous
Hairy Buttercup
Ranunculus sceleratus
Celery-leaved Buttercup
Ranunculus trichophyllus
Thread-leaved Water-crowfoot
Rorippa islandica
Northern Yellow-cress
Rorippa palustris
Marsh Yellow-cress
Rumex maritimus
Golden Dock
Rumex palustris
Marsh Dock
Sagittaria sagittifolia
Arrowhead
Salix viminalis
Osier
Schoenoplectus lacustris
Common Club-rush
Senecio sarracenicus
Broad-leaved Ragwort
Sisyrinchium bermudiana
Blue-eyed-grass
Sisyrinchium montanum
American Blue-eyed-grass
Sparganium angustifolium
Floating Bur-reed
Sparganium erectum
Branched Bur-reed
Sparganium natans
Least Bur-reed
Spirodela polyrhiza
Greater Duckweed
Stellaria aquatica
Water Chickweed
Stuckenia pectinata
Fennel Pondweed
Utricularia intermedia
Intermediate Bladderwort
Veronica anagallis-aquatica
Blue Water-Speedwell
Veronica catenata
Pink Water-Speedwell
Veronica scutellata
Marsh Speedwell
Zannichellia palustris
Horned Pondweed