Epilobium brunnescens
New Zealand Willowherb
Epilobium hirsutum
Great Willowherb
Epilobium palustre
Marsh Willowherb
Equisetum hyemale
Rough Horsetail
Erythranthe guttata
Monkeyflower
Erythranthe lutea
Blood-drop-emlets
Erythranthe x robertsii
Hybrid Monkeyflower
Gagea lutea
Yellow Star-of-Bethlehem
Glyceria declinata
Small Sweet-grass
Glyceria fluitans
Floating Sweet-grass
Helosciadium nodiflorum
Fool's-water-cress
Heracleum mantegazzianum
Giant Hogweed
Impatiens glandulifera
Indian Balsam
Isolepis setacea
Bristle Club-rush
Jacobaea aquatica
Marsh Ragwort
Juncus bufonius
Toad Rush
Juncus bulbosus
Bulbous Rush
Lemna minuta
Least Duckweed
Lupinus polyphyllus
Garden Lupin
Luronium natans
Floating Water-plantain
Lysichiton americanus
American Skunk-cabbage
Lysimachia nummularia
Creeping-Jenny
Myosotis scorpioides
Water Forget-me-not
Myriophyllum alterniflorum
Alternate Water-milfoil