| algae |
Laminaria spp. |
2 |
| alligatorweed |
Alternanthera philoxeroides |
15 |
| Amazon water-lily |
Victoria amazonica |
2 |
| American bugleweed |
Lycopus americanus |
10 |
| American eelgrass |
Vallisneria americana |
6 |
| American frogbit |
Limnobium spongia |
4 |
| American lotus |
Nelumbo lutea |
32 |
| American pondweed |
Potamogeton nodosus |
21 |
| American squawroot |
Conopholis americana |
1 |
| American sweetflag |
Acorus calamus |
4 |
| American waterwillow |
Justicia americana |
11 |
| American white waterlily |
Nymphaea odorata ssp. odorata |
2 |
| anchored waterhyacinth |
Eichhornia azurea |
4 |
| annual wildrice |
Zizania aquatica |
2 |
| arrow-arum |
Peltandra virginica |
8 |
| Australian water lily |
Nymphaea heuelotii |
4 |
| awl-leaf arrowhead |
Sagittaria subulata |
8 |
| bagpod |
Sesbania vesicaria |
2 |
| bald cypress |
Taxodium spp. |
13 |
| baldcypress |
Taxodium distichum |
4 |
| ballhead waterleaf |
Hydrophyllum capitatum |
1 |
| big floatingheart |
Nymphoides aquatica |
16 |
| bigpod sesbania |
Sesbania herbacea |
6 |
| black spruce |
Picea mariana |
1 |
| black willow |
Salix nigra |
4 |
| blackspore quillwort |
Isoetes melanospora |
8 |
| bladderwort |
Utricularia spp. |
4 |
| blue lotus |
Nymphaea nouchali |
4 |
| blue vervain |
Verbena hastata |
1 |
| blue water lily |
Nymphaea nouchali var. caerulea |
5 |
| blueflag iris |
Iris versicolor |
1 |
| blueflower butterwort |
Pinguicula caerulea |
1 |
| blueflower eryngo |
Eryngium integrifolium |
14 |
| bog goldenrod |
Solidago uliginosa |
4 |
| bog laurel |
Kalmia polifolia |
1 |
| bog willow |
Salix pedicellaris |
2 |
| Brazilian waterweed |
Egeria densa |
45 |
| brittleleaf naiad |
Najas minor |
36 |
| brown-beard rice |
Oryza rufipogon |
4 |
| buckbean |
Menyanthes trifoliata |
2 |
| bulbous bittercress |
Cardamine bulbosa |
6 |
| bulbous waterhemlock |
Cicuta bulbifera |
2 |
| bulrush |
Scirpus spp. |
9 |
| burmarigold |
Bidens laevis |
12 |
| bushy waterprimrose |
Ludwigia alternifolia |
2 |
| buttonbush |
Cephalanthus occidentalis |
2 |
| California cordgrass |
Spartina foliosa |
1 |
| candyroot |
Polygala nana |
2 |
| canna |
Canna spp. |
3 |
| Carolina mosquitofern |
Azolla caroliniana |
17 |
| Carolina redroot |
Lachnanthes caroliana |
5 |
| catberry |
Ilex mucronata |
1 |
| cattail |
Typha spp. |
7 |
| chinaberry |
Melia azedarach |
2 |
| climbing aster |
Ampelaster carolinianus |
33 |
| coastal plain honeycombhead |
Balduina angustifolia |
2 |
| coastal plain pennywort |
Hydrocotyle bonariensis |
7 |
| coastal plain St. Johnswort |
Hypericum brachyphyllum |
7 |
| coccolithophorid |
Hymenomonas roseola |
1 |
| coiled vallisneria |
Vallisneria spiralis |
5 |
| colocasia |
Colocasia spp. |
14 |
| common arrowhead |
Sagittaria latifolia |
8 |
| common cattail |
Typha latifolia |
11 |
| common duckmeat |
Spirodela polyrrhiza |
9 |
| common elodea |
Elodea canadensis |
21 |
| common reed |
Phragmites australis |
2 |
| common threesquare |
Schoenoplectus pungens |
3 |
| common winterberry |
Ilex verticillata |
2 |
| coontail |
Ceratophyllum demersum |
7 |
| creeping burhead |
Echinodorus cordifolius |
9 |
| creeping waterprimrose |
Ludwigia peploides |
21 |
| crested floating heart |
Nymphoides cristata |
5 |
| crested woodfern |
Dryopteris cristata |
1 |
| Cuban bulrush |
Oxycaryum cubense |
3 |
| curlyleaf pondweed |
Potamogeton crispus |
29 |
| cypress |
Cupressus spp. |
4 |
| cypress |
|
3 |
| diatom |
Cyclotella cryptica |
1 |
| diatom |
Cyclotella pseudostelligera |
1 |
| diatom |
Discostella woltereckii |
1 |
| diatom |
Skeletonema subsalsun |
2 |
| diatom |
Thalassiosira baltica |
1 |
| dodder |
Cuscuta spp. |
18 |
| dotted duckmeat |
Landoltia punctata |
3 |
| duck-lettuce |
Ottelia alismoides |
8 |
| duckweed |
Lemna spp. |
18 |
| dwarf sundew |
Drosera brevifolia |
11 |
| eastern marsh fern |
Thelypteris palustris |
5 |
| eelgrass |
Vallisneria gigantea |
9 |
| elf orpine |
Diamorpha smallii |
7 |
| erect centella |
Centella erecta |
1 |
| Eurasian watermilfoil |
Myriophyllum spicatum |
45 |
| European pepperwort |
Marsilea quadrifolia |
54 |
| European waterstarwort |
Callitriche stagnalis |
32 |
| fanwort |
Cabomba caroliniana |
62 |
| flatsedge |
Cyperus odoratus |
1 |
| flaxleaf false foxglove |
Agalinis linifolia |
12 |
| floating bladderwort |
Utricularia inflata |
13 |
| floating pennywort |
Hydrocotyle ranunculoides |
13 |
| floating waterprimrose |
Ludwigia repens |
9 |
| foxtail clubmoss |
Lycopodiella alopecuroides |
4 |
| fragrant waterlily |
Nymphaea odorata |
72 |
| Fraser's marsh St. Johnswort |
Triadenum fraseri |
1 |
| giant burreed |
Sparganium eurycarpum |
1 |
| giant salvinia |
Salvinia molesta |
54 |
| Girgensohn's sphagnum |
Sphagnum girgensohnii |
9 |
| globifera |
Micranthemum umbrosum |
16 |
| glossostigma |
Glossostigma spp. |
2 |
| goldenclub |
Orontium aquaticum |
19 |
| gooseweed |
Sphenoclea zeylanica |
1 |
| grape caulerpa |
Caulerpa racemosa |
2 |
| grassleaf Barbara's buttons |
Marshallia graminifolia var. cynanthera |
16 |
| grassleaf rush |
Juncus marginatus |
5 |
| grassy arrowhead |
Sagittaria graminea |
4 |
| green algae |
Cladophora spp. |
9 |
| green algae |
Enteromorpha flexuosa |
1 |
| halberdleaf rosemallow |
Hibiscus laevis |
4 |
| haspan flatsedge |
Cyperus haspan |
7 |
| hollyleaf naiad |
Najas marina |
1 |
| hooded pitcherplant |
Sarracenia minor |
43 |
| horned bladderwort |
Utricularia cornuta |
6 |
| horned pondweed |
Zannichellia palustris |
5 |
| horsetail |
Equisetum spp. |
1 |
| humped bladderwort |
Utricularia gibba |
18 |
| hydrilla |
Hydrilla verticillata |
120 |
| Indianpipe |
Monotropa uniflora |
4 |
| iris |
Iris spp. |
1 |
| jewelweed |
Impatiens capensis |
18 |
| lakecress |
Neobeckia aquatica |
4 |
| lakeshore nutrush |
Scleria lacustris |
3 |
| lanceleaf arrowhead |
Sagittaria lancifolia |
22 |
| lanceleaf violet |
Viola lanceolata |
4 |
| largeflower milkweed |
Asclepias connivens |
23 |
| leafy bladderwort |
Utricularia foliosa |
2 |
| leather flower |
Clematis spp. |
1 |
| lesser creeping rush |
Juncus repens |
10 |
| limnophila |
Limnophila sessiliflora |
2 |
| little amphianthus |
Amphianthus pusillus |
10 |
| lizardstail |
Saururus cernuus |
12 |
| longroot smartweed |
Polygonum amphibium var. emersum |
1 |
| looseflower water-willow |
Justicia ovata var. lanceolata |
8 |
| lotus |
Nelumbo spp. |
22 |
| Magellan's sphagnum |
Sphagnum magellanicum |
3 |
| maidencane |
Panicum hemitomon |
4 |
| mangrove |
Rhizophora spp. |
2 |
| marsh cinquefoil |
Comarum palustre |
3 |
| marsh rose gentian |
Sabatia dodecandra |
1 |
| Mediterranean clone of caulerpa |
Caulerpa taxifolia |
8 |
| melaleuca |
Melaleuca quinquenervia |
6 |
| Mexican mosquitofern |
Azolla mexicana |
5 |
| Mexican oak leaf |
Shinnersia rivularis |
7 |
| Mexican waterlily |
Nymphaea mexicana |
3 |
| minute duckweed |
Lemna minuta |
19 |
| miramar weed |
Hygrophila polysperma |
3 |
| mudmat |
Glossostigma cleistanthum |
39 |
| musky marshpennywort |
Hydrocotyle moschata |
1 |
| narrowfruit horned beaksedge |
Rhynchospora inundata |
1 |
| narrowleaf cattail |
Typha angustifolia |
1 |
| nodding beggarticks |
Bidens cernua |
6 |
| nodding trillium |
Trillium cernuum |
1 |
| northern waterplantain |
Alisma plantago-aquatica |
3 |
| Okefenokee giant pitcher plant |
Sarracenia minor var. okefenokeensis |
12 |
| oneflower stitchwort |
Minuartia uniflora |
4 |
| oxygen weed |
Lagarosiphon major |
2 |
| Pacific mosquitofern |
Azolla filiculoides |
14 |
| Pallas' buttercup |
Ranunculus pallasii |
2 |
| parrot feather milfoil |
Myriophyllum aquaticum |
34 |
| parrot pitcherplant |
Sarracenia psittacina |
8 |
| pickerelweed |
Pontederia cordata |
33 |
| pineland threeawn |
Aristida stricta |
1 |
| pink bogbutton |
Sclerolepis uniflora |
14 |
| pink turtlehead |
Chelone lyonii |
3 |
| pinnate mosquitofern |
Azolla pinnata |
7 |
| polytrichum moss |
Polytrichum commune |
1 |
| polytrichum moss |
Polytrichum piliferum |
1 |
| pondcypress |
Taxodium ascendens |
2 |
| portulacaria |
Portulacaria spp. |
5 |
| purple bladderwort |
Utricularia purpurea |
4 |
| purple loosestrife |
Lythrum salicaria |
24 |
| purple pitcherplant |
Sarracenia purpurea |
9 |
| quillwort |
Isoetes spp. |
1 |
| red mangrove |
Rhizophora mangle |
2 |
| redroot flatsedge |
Cyperus erythrorhizos |
13 |
| redstem |
Ammannia coccinea |
3 |
| reed mannagrass |
Glyceria maxima |
2 |
| ribbon kelp |
Egregia menziesii |
1 |
| rice cutgrass |
Leersia oryzoides |
4 |
| riverhemp |
Sesbania spp. |
2 |
| rock snot |
Didymosphenia geminata |
3 |
| rock weed algae |
Fucus gardneri |
1 |
| Rocky Mountain pond-lily |
Nuphar lutea ssp. polysepala |
8 |
| roundleaf toothcup |
Rotala rotundifolia |
21 |
| Russow's sphagnum |
Sphagnum russowii |
3 |
| Sacred lotus |
Nelumbo nucifera |
21 |
| saltmeadow cordgrass |
Spartina patens |
1 |
| sand dune thistle |
Cirsium pitcheri |
1 |
| sand pine |
Pinus clausa |
1 |
| scrub live oak |
Quercus geminata |
2 |
| seabeach evening primrose |
Oenothera humifusa |
12 |
| Senegal tea plant |
Gymnocoronis spilanthoides |
2 |
| sevenangle pipewort |
Eriocaulon aquaticum |
2 |
| slender bugleweed |
Lycopus uniflorus |
7 |
| slender naiad |
Najas flexilis |
1 |
| slender spikerush |
Eleocharis baldwinii |
12 |
| small butterwort |
Pinguicula pumila |
22 |
| smallflower umbrella sedge |
Cyperus difformis |
3 |
| smooth cordgrass |
Spartina alterniflora |
1 |
| snakemouth orchid |
Pogonia ophioglossoides |
2 |
| soft rush |
Juncus effusus |
1 |
| softstem bulrush |
Schoenoplectus tabernaemontani |
1 |
| southern naiad |
Najas guadalupensis |
7 |
| southern watergrass |
Luziola fluitans |
5 |
| speckled alder |
Alnus incana ssp. rugosa |
3 |
| sphagnum |
Sphagnum capillifolium |
6 |
| sphagnum |
Sphagnum spp. |
4 |
| sphagnum |
Sphagnum squarrosum |
8 |
| spiderlily |
Hymenocallis spp. |
3 |
| spoonleaf sundew |
Drosera intermedia |
16 |
| spotted waterhemlock |
Cicuta maculata |
40 |
| squarestem spikerush |
Eleocharis quadrangulata |
2 |
| St. Johnswort |
Hypericum spp. |
1 |
| sterile oat |
Avena sterilis |
1 |
| sundews |
Drosera spp. |
2 |
| swamp leather flower |
Clematis crispa |
8 |
| swamp loosestrife |
Decodon verticillatus |
2 |
| swamp morningglory |
Ipomoea aquatica |
5 |
| swamp sunflower |
Helianthus angustifolius |
17 |
| sweetgale |
Myrica gale |
1 |
| syngonanthus |
Syngonanthus spp. |
7 |
| tall beggarticks |
Bidens vulgata |
3 |
| tamarack |
Larix laricina |
1 |
| tawny cottongrass |
Eriophorum virginicum |
1 |
| tenangle pipewort |
Eriocaulon decangulare |
5 |
| threeway sedge |
Dulichium arundinaceum |
6 |
| toothed sphagnum |
Sphagnum cuspidatum |
7 |
| torpedograss |
Panicum repens |
20 |
| tuberous grasspink |
Calopogon tuberosus |
1 |
| twoleaf watermilfoil |
Myriophyllum heterophyllum |
63 |
| Uruguayan pampas grass |
Cortaderia selloana |
3 |
| wand goldenrod |
Solidago stricta |
11 |
| water cowbane |
Oxypolis filiformis |
10 |
| water fern |
Salvinia minima |
39 |
| water hyacinth |
Eichhornia spp. |
1 |
| water knotweed |
Polygonum amphibium |
19 |
| water pennywort |
Hydrocotyle spp. |
2 |
| water pennywort |
Hydrocotyle umbellata |
9 |
| water smartweed |
Polygonum amphibium var. stipulaceum |
1 |
| water snowflake |
Nymphoides indica |
1 |
| water speedwell |
Veronica anagallis-aquatica |
5 |
| water tupelo |
Nyssa aquatica |
1 |
| water-chestnut |
Trapa natans |
36 |
| waterclover |
Marsilea spp. |
4 |
| waterhyacinth |
Eichhornia crassipes |
133 |
| waterlettuce |
Pistia stratiotes |
91 |
| waterlilies |
Nymphaea spp. |
11 |
| watermeal |
Wolffia spp. |
7 |
| watermoss |
Salvinia spp. |
141 |
| waterpod |
Hydrolea quadrivalvis |
12 |
| waterpoppy |
Hydrocleys nymphoides |
3 |
| waterpurslane |
Ludwigia palustris |
5 |
| watershield |
Brasenia schreberi |
15 |
| watersprite |
Ceratopteris thalictroides |
18 |
| waterstarwort |
Callitriche palustris |
10 |
| waterthread pondweed |
Potamogeton diversifolius |
10 |
| wedgeleaf arrowhead |
Sagittaria cuneata |
1 |
| western elodea |
Elodea nuttallii |
5 |
| wetland nightshade |
Solanum tampicense |
4 |
| white turtlehead |
Chelone glabra |
3 |
| widgeonweed |
Ruppia spp. |
10 |
| woolly ragwort |
Packera tomentosa |
1 |
| Wulf's sphagnum |
Sphagnum wulfianum |
13 |
| yellow butterwort |
Pinguicula lutea |
3 |
| yellow colicroot |
Aletris lutea |
3 |
| yellow floatingheart |
Nymphoides peltata |
66 |
| yellow marsh marigold |
Caltha palustris |
3 |
| yellow pitcherplant |
Sarracenia flava |
26 |
| yellow pond-lily |
Nuphar lutea ssp. sagittifolia |
4 |
| yellow waterlily |
Nuphar lutea |
18 |
| yelloweyed grass |
Xyris spp. |
2 |
| yellowflag iris |
Iris pseudacorus |
3 |
| yerba de hicotea |
Hygrophila costata |
9 |