Scientific Name Common Name Family Score Acorus Calamus Sweet Flag

Scientific name Common name Family Score Acorus calamus Sweet flag Acoraceae 48 Acorus gramineus Grass-leaf sweet flag Acoraceae 20 Aldrovanda vesiculosa Waterwheel plant Droseraceae 27 Alisma plantago-aquatica Water plantain Alismataceae 37 Alternanthera philoxeroides Alligator weed Amaranthaceae 75 Aponogeton distachyos Cape pondweed Aponogetonaceae 53 Aponogeton natans Floating lace plant Aponogetonaceae 15 Azolla pinnata Mosquito fern Azollaceae 67 Bolbitis heteroclita Asian water fern Lomariopsidaceae 23 Butomus umbellatus Flowering rush Butomaceae 62 Cabomba caroliniana* Fanwort Cabombaceae 67 Callitriche stagnalis European water starwort Callitrichaceae 42 Canna × generalis Common garden canna Cannaceae 26 Cardamine lyrata Chinese ivy Brassicaceae 21 Crassula helmsii Australian stonecrop Crassulaceae 70 Cyperus difformis Small flower umbrella plant Cyperaceae 45 Cyperus involucratus Umbrella sedge Cyperaceae 35 Cyperus longus Sweet cyperus Cyperaceae 19 Cyperus serotinus Tidal marsh flat sedge Cyperaceae 27 Egeria densa Brazilian elodea Hydrocharitaceae 71 Eichhornia crassipes Water hyacinth Pontederiaceae 81 Elatine macropoda Southern waterwort Elatinaceae 14 Eriophorum latifolium Grey cotton grass Cyperaceae 11 Euryale ferox Gorgon Nymphaeaceae 19 Glyceria fluitans Floating manna grass Poaceae 45 Glyceria maxima Reed sweet grass Poaceae 71 Gratiola officinalis Gratiola Plantaginaceae 28 Scientific name Common name Family Score Gratiola peruviana Austral brooklime Plantaginaceae 23 Hesperantha coccinea River lily Iridaceae 28 Heteranthera zosterifolia Stargrass Pontederiaceae 11 Hottonia palustris Water violet Primulaceae 30 Houttuynia cordata Chameleon plant Saururaceae 40 Hydrilla verticillata Hydrilla Hydrocharitaceae 79 Hydrocharis morsus-ranae European frog's bit Hydrocharitaceae 62 Hydrocotyle vulgaris Marsh pennywort Araliaceae 33 Iris ensata Japanese water iris Iridaceae 25 Iris pseudacorus Yellow flag iris Iridaceae 58 Lagarosiphon major Oxygen weed Hydrocharitaceae 67 Landoltia punctata Dotted duckmeat Araceae 45 Lasia spinosa Lasia Araceae 20 Lilaeopsis novae-zelandiae Micro sword Apiaceae 19 Limnophila sessiliflora Ambulia Limnocharitaceae 44 Large-flower primrose- Ludwigia grandiflora willow Onagraceae 70 Ludwigia helminthorrhiza Rattlebox Onagraceae 16 Ludwigia peploides* Floating primrose-willow Onagraceae 76 Lythrum salicaria Purple loosestrife Lythraceae 73 Marsilea drummondii Common nardoo Marsileaceae 22 Marsilea quadrifolia European water clover Marsileaceae 61 Mentha aquatica Water mint Lamiaceae 37 Heartshape false Monochoria vaginalis pickerelweed Pontederiaceae 36 Murdannia keisak Marsh dewflower Commelinaceae 38 Myosotis scorpioides Forget-me-not Boraginaceae 38 Myriophyllum aquaticum Parrot's feather Haloragaceae 75 Myriophyllum heterophyllum* Twoleaf watermilfoil Haloragaceae 72 Scientific name Common name Family Score Myriophyllum spicatum Eurasian watermilfoil Haloragaceae 81 Najas minor Brittle naiad Najadaceae 66 Nasturtium microphyllum One-row watercress Brassicaceae 35 Nasturtium officinale Watercress Brassicaceae 44 Nechamandra alternifolia Nechamandra Hydrocharitaceae 20 Nelumbo nucifera East Indian lotus Nelumbonaceae 38 Nymphaea candida Hardy waterlily Nymphaeaceae 17 Nymphaea lotus Egyptian lotus Nymphaeaceae 39 Nymphoides crenata Wavy marshwort Menyanthaceae 17 Nymphoides indica Water snowflake Menyanthaceae 30 Nymphoides peltata Yellow floating heart Menyanthaceae 74 Oenanthe aquatica Fine-leaf water dropwort Apiaceae 35 Ottelia alismoides Duck lettuce Hydrocharitaceae 37

Persicaria hydropiper Marsh-pepper smartweed Polygonaceae 54 Philydrum lanuginosum Frogmouth Philydraceae 20 Phragmites australis* Phragmites, common reed Poaceae 75 Pistia stratiotes Water lettuce Araceae 72 Potamogeton crispus Curly-leaf pondweed Potamogetonaceae 69 Potamogeton gayii Slender pondweed Potamogetonaceae 12 Potamogeton wrightii Potamogeton Potamogetonaceae 19 Ranunculus lingua Greater spearwort Ranunculaceae 26 Ricciocarpos natans Purple-fringed riccia Ricciaceae 37 Rotala rotundifolia Roundleaf toothcup Lythraceae 42 Sagittaria sagittifolia Arrow head Alismataceae 51 Sagittaria sagittifolia subsp. leucopetala Chinese arrowhead Alismataceae 30 Salvinia natans Floating watermoss Salviniaceae 57 Saururus chinensis Chinese lizard's tail Saururaceae 17 Scientific name Common name Family Score

Schoenoplectus glaucus Tuberous bulrush Cyperaceae 23 Schoenoplectus mucronatus Ricefield bulrush Cyperaceae 40 Sparganium erectum Bur reed Sparganiaceae 44 Stratiotes aloides Water soldiers Hydrocharitaceae 40 Trapa natans European water chestnut Trapaceae 66 Typha × glauca Cattail Typhaceae 52 Typha angustifolia Narrow-leaf cattail Typhaceae 69 Typha minima Dwarf cattail Typhaceae 27 Utricularia aurea Golden bladderwort Lentibulariaceae 17 Utricularia australis Bladderwort Lentibulariaceae 22 Utricularia stellaris Yellow bladderwort Lentibulariaceae 20 Vallisneria spiralis Eel grass Hydrocharitaceae 69 Veronica beccabunga European brooklime Plantaginaceae 32 Wolffia welwitschii Pond bogmat Araceae 15