| Latin Name | Common Name | Edibility Rating | Medicinal Rating |
| Acorus calamus | Sweet Flag - Calamus | 3 | 4 |
| Acorus gramineus | Grass-leaved Sweet Rush, Japanese Sweet Flag, Dwarf Sweet Flag | 3 | 3 |
| Alisma canaliculatum | | 1 | 0 |
| Alisma plantago-aquatica | Great Water Plantain, ZE-XIE, European water plantain, American water plantain, Northern water plan | 1 | 3 |
| Anemopsis californica | Yerba Mansa | 2 | 2 |
| Aponogeton distachyos | Water Hawthorn, Cape pondweed, Vleikos | 2 | 0 |
| Azolla filiculoides | Azolla, Pacific mosquitofern | 0 | 0 |
| Beckmannia eruciformis | Sloughgrass | 2 | 0 |
| Brasenia schreberi | Water Shield | 3 | 2 |
| Butomus umbellatus | Flowering Rush | 3 | 0 |
| Calla palustris | Water Arum | 2 | 2 |
| Callitriche hermaphroditica | Water Starwort, Northern water-starwort | 0 | 0 |
| Callitriche palustris | Common Waterwort, Vernal water-starwort | 1 | 0 |
| Caltha leptosepala | Western Marsh Marigold, Howell's marsh marigold, Sulphur marsh marigold | 2 | 1 |
| Caltha leptosepala howellii | | 2 | 0 |
| Caltha natans | Floating marsh marigold | 1 | 1 |
| Caltha palustris | Marsh Marigold, Yellow marsh marigold | 2 | 2 |
| Caltha sinogracilis | | 1 | 0 |
| Cardamine rotundifolia | American Water Cress, American bittercress | 2 | 0 |
| Carex utriculata | Sedge, Northwest territory sedge | 2 | 0 |
| Catabrosa aquatica | Water WhirlGrass | 1 | 1 |
| Ceratophyllum demersum | Hornwort, Coon's tail | 1 | 1 |
| Cyperus longus | Galingale | 2 | 1 |
| Damasonium alisma | Thrumwort | 1 | 0 |
| Darmera peltata | Umbrella Plant, Indian rhubarb, Indian Rubarb, Indian Rubarb | 2 | 0 |
| Drosera rotundifolia | Sundew, Roundleaf sundew | 1 | 3 |
| Eichhornia crassipes | Water Hyacinth, Common water hyacinth | 2 | 0 |
| Eleocharis dulcis | Chinese Water Chestnut | 4 | 1 |
| Eleocharis palustris | Common Spike-Rush, Common spikerush | 1 | 0 |
| Elodea canadensis | Canadian Pondweed, Canadian waterweed | 0 | 1 |
| Equisetum fluviatile | Swamp Horsetail, Water horsetail | 2 | 2 |
| Eriophorum angustifolium | Cotton Grass, Tall cottongrass | 2 | 1 |
| Eriophorum gracile | Cotton Grass, Slender cottongrass | 2 | 0 |
| Euryale ferox | Foxnut, Euryale | 3 | 2 |
| Glyceria acutiflora | Creeping mannagrass | 1 | 0 |
| Glyceria borealis | Small floating mannagrass | 2 | 0 |
| Glyceria fluitans | Floating Manna Grass, Water mannagrass | 3 | 0 |
| Glyceria occidentalis | Northwestern mannagrass | 1 | 0 |
| Glyceria plicata | | 1 | 0 |
| Glyceria septentrionalis | Eastern Manna Grass, Floating mannagrass | 1 | 0 |
| Glyceria striata | Fowl Manna Grass, Fowl mannagrass | 1 | 0 |
| Glyptostrobus pensilis | Chinese Swamp Cypress | 0 | 2 |
| Hippuris vulgaris | Common Marestail, Common mare's-tail | 2 | 1 |
| Hottonia palustris | Water Violet | 0 | 1 |
| Houttuynia cordata | Tsi, Chameleon, Rainbow Plant, Chameleon Plant | 4 | 4 |
| Hydrilla verticillata | Hydrilla, Waterthyme | 0 | 2 |
| Iris pseudacorus | Yellow Flag, Paleyellow iris | 1 | 2 |
| Juncus acutus | Sharp Rush, Spiny rush, Leopold's rush | 0 | 0 |
| Juncus balticus | Baltic Rush | 1 | 0 |
| Juncus conglomeratus | Common rush | 0 | 0 |
| Juncus effusus | Soft Rush, Common rush, Lamp rush, Pacific rush | 1 | 2 |
| Juncus inflexus | Hard Rush, European meadow rush | 0 | 0 |
| Juncus procerus | | 0 | 0 |
| Jussieva repens | | 0 | 1 |
| Lemna gibba | Gibbous Duckweed, Swollen duckweed, Windbags, Duckweed | 3 | 0 |
| Lemna minor | Duckweed, Common duckweed | 1 | 2 |
| Lemna trisulca | Star Duckweed | 0 | 1 |
| Lilaea scilloides | Awl-leaf lilaea | 0 | 0 |
| Lobelia cardinalis | Cardinal Flower | 0 | 3 |
| Ludwigia palustris | Water Purslane, Marsh seedbox | 0 | 1 |
| Lycopus europaeus | Gypsywort | 1 | 3 |
| Lysichiton americanus | Yellow Skunk Cabbage, American skunkcabbage | 3 | 2 |
| Lysichiton camtschatcense | | 1 | 0 |
| Lysimachia fortunei | | 1 | 0 |
| Lysimachia nummularia | Creeping Jenny, Moneywort, Creeping Charlie | 1 | 2 |
| Lysimachia paridiformis | | 0 | 2 |
| Lysimachia vulgaris | Yellow Loosestrife, Garden yellow loosestrife | 1 | 2 |
| Lythrum portula | Water Purslane, Spatulaleaf loosestrife | 1 | 0 |
| Lythrum salicaria | Purple Loosestrife | 2 | 3 |
| Marsilea quadrifolia | Water Clover, European waterclover | 1 | 2 |
| Mentha aquatica | Water Mint | 3 | 3 |
| Menyanthes trifoliata | Bogbean, Buckbean, Marsh Trefoil, | 2 | 3 |
| Metasequoia glyptostroboides | Dawn Redwood | 0 | 0 |
| Mimulus geyeri | Monkey Flower | 2 | 0 |
| Mimulus guttatus | Yellow Monkey Flower, Seep monkeyflower | 2 | 2 |
| Mimulus lewisii | Great Purple Monkey Flower, Purple monkeyflower | 2 | 1 |
| Montia fontana | Water Blinks, Annual water minerslettuce | 2 | 0 |
| Myosotis scorpioides | Water Forget-Me-Not, True forget-me-not | 0 | 1 |
| Myosoton aquaticum | Water Chickweed, Giantchickweed | 1 | 1 |
| Myriophyllum spicatum | Water Milfoil, Eurasian watermilfoil | 1 | 1 |
| Myriophyllum verticillatum | Myriad Leaf, Whorl-leaf watermilfoil | 1 | 0 |
| Najas flexilis | Nodding waternymph | 2 | 0 |
| Najas graminea | Ricefield waternymph | 1 | 0 |
| Najas marina | Spiny Naiad | 1 | 0 |
| Nasturtium microphyllum | Watercress, Onerow yellowcress | 3 | 1 |
| Nasturtium officinale | Watercress | 4 | 3 |
| Nasturtium x sterile | Brown Watercress | 4 | 3 |
| Nelumbo lutea | American Water Lotus, American lotus | 4 | 1 |
| Nelumbo nucifera | Sacred Water Lotus, Sacred lotus | 4 | 3 |
| Nuphar advena | Common Spatterdock, Yellow pond-lily, Varigated yellow pond-lily | 3 | 2 |
| Nuphar japonicum | | 3 | 1 |
| Nuphar lutea | Yellow Water Lily, Yellow pond-lily, Rocky Mountain pond-lily, Varigated yellow pond-lily | 3 | 2 |
| Nuphar polysepala | Spatterdock, Rocky Mountain pond-lily | 3 | 1 |
| Nuphar pumila | Yellow pond-lily | 3 | 1 |
| Nymphaea alba | White Water Lily, European white waterlily | 3 | 2 |
| Nymphaea candida | | 2 | 2 |
| Nymphaea odorata | Fragrant Water Lily, American white waterlily | 3 | 3 |
| Nymphaea tetragona | Pygmy Water Lily | 2 | 0 |
| Nymphaea tuberosa | Tuberous Water Lily, American white waterlily | 3 | 3 |
| Nymphoides peltata | Water Fringe, Yellow floatingheart | 2 | 2 |
| Nyssa aquatica | Water Tupelo | 2 | 0 |
| Oenanthe aquatica | Water Dropwort, Fineleaf waterdropwort | 0 | 2 |
| Oenanthe javanica | Water Dropwort, Java waterdropwort, Stolon waterdropwort | 3 | 2 |
| Ophiopogon japonicus | Snake's Beard, Dwarf lilyturf, Mondo Grass, Monkey Grass, Dwarf Lilyturf | 2 | 3 |
| Orontium aquaticum | Golden Club | 3 | 0 |
| Peltandra sagittifolia | White Arrow Arum | 2 | 0 |
| Peltandra virginica | Green Arrow Arum | 3 | 0 |
| Penthorum sedoides | Virginian Stonecrop, Ditch stonecrop | 1 | 2 |
| Phragmites australis | Common Reed, American common reed, Hybrid common reed, European common reed, Subtropical common re | 5 | 2 |
| Phyllospadix scouleri | Surf Grass, Scouler's surfgrass | 2 | 0 |
| Polygonum amphibium | Willow Grass, Water knotweed, Longroot smartweed, Water smartweed | 1 | 2 |
| Polygonum coccineum | Water Smartweed | 1 | 0 |
| Polygonum hydropiper | Smartweed, Marshpepper knotweed | 2 | 2 |
| Pontederia cordata | Pickerel Weed | 3 | 1 |
| Potamogeton cheesemanii | | 1 | 0 |
| Potamogeton crispus | Curly Pondweed | 2 | 0 |
| Potamogeton cristatus | | 1 | 0 |
| Potamogeton distinctus | | 1 | 0 |
| Potamogeton natans | Broad-Leaved Pondweed, Floating pondweed | 3 | 1 |
| Potamogeton oxyphyllus | | 2 | 0 |
| Potamogeton pectinatus | Fennel-Leaved Pondweed | 3 | 1 |
| Potamogeton suboblongus | | 1 | 0 |
| Ranunculus aquatilis | Water Crowfoot, White water crowfoot | 1 | 1 |
| Ranunculus flammula | Lesser Spearwort, Greater creeping spearwort | 0 | 1 |
| Ranunculus nipponicus | | 1 | 0 |
| Ranunculus reptans | Creeping Spearwort | 1 | 0 |
| Ranunculus sceleratus | Celery-Leaved Buttercup, Cursed buttercup | 1 | 1 |
| Rorippa amphibia | Great Yellow Cress | 3 | 0 |
| Rumex aquaticus | Red Dock, Western dock | 1 | 3 |
| Rumex hydrolapathum | Great Water Dock | 1 | 1 |
| Sagittaria aginashi | | 1 | 0 |
| Sagittaria brevirosta | Short-Beaked Arrow Leaf | 2 | 0 |
| Sagittaria chapmanii | Chapman's arrowhead | 0 | 0 |
| Sagittaria cuneata | Wapato, arumleaf arrowhead | 4 | 1 |
| Sagittaria graminea | Chinese Arrowhead, Grassy Arrowhead, Weatherby's arrowhead | 1 | 0 |
| Sagittaria latifolia | Duck Potato, Broadleaf Arrowhead | 5 | 1 |
| Sagittaria rigida | Sessile-Fruited Arrowhead | 3 | 0 |
| Sagittaria sagittifolia | Arrow Head, Hawaii arrowhead | 5 | 1 |
| Sagittaria sagittifolia leucopetala | | 3 | 1 |
| Samolus valerandi | Brookweed, Seaside brookweed | 2 | 1 |
| Saururus cernuus | Swamp Lily, Lizard's Tail | 0 | 1 |
| Saururus chinensis | | 0 | 2 |
| Scirpus acutus | Hard Stem Bulrush | 3 | 1 |
| Scirpus affinis | | 2 | 0 |
| Scirpus americanus | American Bulrush | 2 | 0 |
| Scirpus cyperinus | Woolly Grass Bulrush, Woolgrass | 1 | 0 |
| Scirpus fluviatilis | River Bulrush | 2 | 1 |
| Scirpus lacustris | Bulrush | 3 | 1 |
| Scirpus maritimus | Seaside Bulrush. Cosmopolitan Bulrush | 3 | 1 |
| Scirpus microcarpus | Panicled Bulrush | 3 | 1 |
| Scirpus nevadensis | Nevada Bulrush | 2 | 0 |
| Scirpus paludosus | Bayonet Grass | 2 | 0 |
| Scirpus subterminalis | Water Bulrush | 2 | 0 |
| Scirpus ternatus | | 1 | 0 |
| Scirpus validus | River Club-Rush | 2 | 1 |
| Scirpus validus creber | Soft-Stem Bulrush | 2 | 1 |
| Sium latifolium | Water Parsnip, Wideleaf waterparsnip | 1 | 0 |
| Sparganium americanum | Bur-Reed, American bur-reed | 1 | 0 |
| Sparganium androcladum | Branching Bur-Reed | 1 | 0 |
| Sparganium erectum | Bur Reed, Simplestem bur-reed | 2 | 1 |
| Sparganium longifolium | | 1 | 0 |
| Sparganium stoloniferum | | 1 | 1 |
| Spirodela polyrrhiza | Great Duckweed, Common duckmeat | 1 | 2 |
| Stratiotes aloides | Water Soldier | 0 | 1 |
| Taxodium distichum | Swamp Cypress, Bald cypress, Common Bald Cypress | 0 | 1 |
| Trapa bicornis | Ling, Horn nut | 4 | 1 |
| Trapa incisa | | 1 | 0 |
| Trapa japonica | | 1 | 0 |
| Trapa natans | Water Chestnut | 4 | 2 |
| Triglochin maritima | Sea Arrow Grass | 2 | 0 |
| Triglochin palustris | Marsh Arrow Grass | 2 | 0 |
| Triglochin procera | Water Ribbons | 1 | 0 |
| Typha angustifolia | Small Reed Mace, Narrowleaf cattail | 5 | 3 |
| Typha bungeana | | 4 | 3 |
| Typha davidiana | | 4 | 3 |
| Typha domingensis | Southern Cattail | 4 | 3 |
| Typha glauca | Hybrid cattail | 4 | 0 |
| Typha latifolia | Reedmace, Broadleaf cattail, Bullrush, Nailrod | 5 | 3 |
| Typha laxmannii | | 4 | 1 |
| Typha minima | | 2 | 3 |
| Typha orientalis | Broadleaf Cumbungi | 4 | 3 |
| Utricularia vulgaris | Bladderwort | 1 | 1 |
| Vallisneria americana | Water Celery, American eelgrass | 1 | 0 |
| Vallisneria spiralis | Eel Grass | 1 | 2 |
| Veronica americana | American Brooklime, American speedwell | 2 | 1 |
| Veronica anagallis-aquatica | Water Speedwell | 2 | 2 |
| Veronica beccabunga | Brooklime, European speedwell | 1 | 1 |
| Veronica catenata | | 1 | 0 |
| Veronica scutellata | Marsh Speedwell, Skullcap speedwell | 1 | 0 |
| Wasabia japonica | Japanese Horseradish, Wasabi | 4 | 1 |
| Wolffia arrhiza | Least Duckweed, Spotless watermeal | 4 | 0 |
| Zannichellia palustris | Horned Pondweed | 0 | 0 |
| Zantedeschia aethiopica | Arum Lily, Calla lily, White Calla Lily | 1 | 0 |
| Zizania aquatica | Wild Rice, Annual wildrice | 5 | 0 |
| Zizania latifolia | Manchurian Wild Rice | 4 | 1 |
| Zostera marina | Eel Grass, Seawrack | 2 | 1 |