| alligatorweed |
Alternanthera philoxeroides (Mart.) Griseb. |
Amaranthaceae |
Caryophyllales |
| melaleuca |
Melaleuca quinquenervia (Cav.) Blake |
Myrtaceae |
Myrtales |
| giant salvinia |
Salvinia molesta D. S. Mitchell |
Salviniaceae |
Hydropteridales |
| Brazilian waterweed, Brazilian elodea |
Egeria densa Planch. |
Hydrocharitaceae |
Hydrocharitales |
| hydrilla |
Hydrilla verticillata (L. f.) Royle |
Hydrocharitaceae |
Hydrocharitales |
| purple loosestrife |
Lythrum salicaria L. |
Lythraceae |
Myrtales |
| Eurasian watermilfoil |
Myriophyllum spicatum L. |
Haloragaceae |
Haloragales |
| brittleleaf naiad |
Najas minor All. |
Najadaceae |
Najadales |
| common reed |
Phragmites australis (Cavanilles) Trinius ex Steudel |
Poaceae |
Cyperales |
| water lettuce |
Pistia stratiotes L. |
Araceae |
Arales |
| European water chestnut |
Trapa natans L. |
Trapaceae |
Myrtales |
| wetland nightshade |
Solanum tampicense Dunal |
Solanaceae |
Solanales |
| monochoria |
Monochoria vaginalis (Burm. f.) K. Presl ex Kunth |
Pontederiaceae |
Liliales |
| arrowleaved monochoria |
Monochoria hastata (L.) Solms |
Pontederiaceae |
Liliales |
| arrowhead |
Sagittaria sagittifolia Linnaeus |
Alismataceae |
Alismatales |
| miramar weed |
Hygrophila polysperma (Roxb.) T. Anders. |
Acanthaceae |
Scrophulariales |
| branched burreed |
Sparganium erectum L. |
Sparganiaceae |
Typhales |
| duck-lettuce |
Ottelia alismoides (Linnaeus) Pers. |
Hydrocharitaceae |
Hydrocharitales |
| lobed salvinia |
Salvinia biloba Raddi |
Salviniaceae |
Hydropteridales |
| eared salvinia |
Salvinia auriculata Aublet |
Salviniaceae |
Hydropteridales |
| Herzog salvinia |
Salvinia herzogii de la Sota |
Salviniaceae |
Hydropteridales |
| feathered mosquito-fern |
Azolla pinnata R. Brown |
Salviniaceae |
Hydropteridales |
| limnophila |
Limnophila sessiliflora (Vahl) Blume |
Plantaginaceae |
Plantaginales |
| oxygen weed |
Lagarosiphon major (Ridley) Moss |
Hydrocharitaceae |
Hydrocharitales |
| anchored waterhyacinth |
Eichhornia azurea (Swartz) Kunth |
Pontederiaceae |
Liliales |
| Mediterranean clone of caulerpa |
Caulerpa taxifolia (Vahl) C. Agardth |
Caulerpaceae |
Caulerpales |
| swamp morning-glory |
Ipomoea aquatica Forssk. |
Convolvulaceae |
Solanales |
| water primrose |
Ludwigia grandiflora ssp. hexapetala (Hook. & Arn.) Nesom & Kartesz |
Onagraceae |
Myrtales |
| common water hyacinth |
Pontederia crassipes Martius |
Pontederiaceae |
Liliales |