| Preview pict. | Species, Subspecies, or Variety |
Family | |
Photos from |
 |
Agardhiella subulata / Agardhiella ? |
| Rhodophytina / Red Algae | | D
NL
|
|
Alisma / Water-Plantain (3) |
| Alismataceae / Water Plantain Fam. | | |
|
Azolla filiculoides / Water Fern |
| Salviniaceae / Floating Fern Fam. | | D
F
|
|
Baldellia ranunculoides / Lesser Water-Plantain |
| Alismataceae / Water Plantain Fam. | | D
F
IRL
|
|
Berula erecta / Lesser Water Parsnip |
| Apiaceae / Umbellifers | | D
F
HR
I
|
|
Blidingia minima / Lesser Grass Kelp, Green Seaweed |
| Ulvales / Green Algae | | NL
|
|
Cabomba caroliniana / Carolina Fanwort, Green Cabomba |
| Cabombaceae / Fanwort Fam. | | D
|
|
Calla palustris / Bog Arum |
| Araceae / Arum Fam. | | CH
D
S
|
|
Callitriche / Water Starwort (11) |
| Plantaginaceae / Plantain Fam. | | |
|
Cardamine / Bitter-Cress,Cuckooflower (2) |
| Brassicaceae / Crucifers | | |
|
Ceramium / Weed (2) |
| Rhodophytina / Red Algae | | |
|
Ceratophyllum / Hornwort (2) |
| Ceratophyllaceae / Hornwort Fam. | | |
|
Chara spec1 / Brittleword, Stoneword ? |
| Characeae / Stoneworts | | D
|
|
Chondrus crispus / Irish Moss, Carrageen Moss ? |
| Rhodophytina / Red Algae | | Chi
|
|
Cicuta virosa / Cowbane, Water Hemlock |
| Apiaceae / Umbellifers | | D
|
|
Cochlearia pyrenaica / Roundfruit Scurvy-Grass |
| Brassicaceae / Crucifers | | D
F
|
|
Codium fragile / Dead Man's Fingers, Green Sea Fingers |
| Ulvales / Green Algae | | E
NL
|
|
Colpomenia peregrina / Oyster Thief |
| Fucaceae / Seaweeds | | NL
|
|
Corallina officinalis / Red Seaweed |
| Rhodophytina / Red Algae | | E
|
|
Crambe hispanica / Spanish Colewort |
| Brassicaceae / Crucifers | | Kef
|
|
Crassula helmsii / Swamp Stonecrop, New Zealand Pygmyweed |
| Crassulaceae / Stonecrop Fam. | | D
|
|
Cryptocoryne / Cryptocoryne (2) |
| Araceae / Arum Fam. | | |
|
Cystoseira abies-marina / Atlantic Brown Alga ? |
| Fucaceae / Seaweeds | | Cor
|
|
Dudresnaja verticillata / Red Alga ? |
| Rhodophytina / Red Algae | | D
S
|
|
Egeria densa / Brazilian Waterweed |
| Hydrocharitaceae / Frogbit Fam. | | D
|
|
Elatine / Waterwort (4) |
| Elatinaceae / Waterwort Fam. | | |
|
Eleocharis / Spike Rush (12) |
| Cyperaceae / Sedge Fam. | | |
|
Elodea / Waterweed (2) |
| Hydrocharitaceae / Frogbit Fam. | | |
|
Enteromorpha / Gutweed (4) |
| Ulvales / Green Algae | | |
|
Equisetum x meridionale / Hybrid Horsetail |
| Equisetaceae / Horsetail Fam. | | D
|
|
Fucus / Wrack (3) |
| Fucaceae / Seaweeds | | |
|
Groenlandia densa / Opposite-Leaved Pontweed |
| Potamogetonaceae / Pontweed Fam. | | D
|
|
Hippuris vulgaris / Mare's Tail |
| Plantaginaceae / Plantain Fam. | | A
D
|
|
Hottonia palustris / Water Violet |
| Primulaceae / Primrose Fam. | | D
|
|
Hydrocharis morsus-ranae / Frogbit |
| Hydrocharitaceae / Frogbit Fam. | | D
NL
|
|
Hydrocotyle / Pennywort (2) |
| Araliaceae / Ivy Fam. | | |
|
Iris pseudacorus / Yellow Iris |
| Iridaceae / Iris Fam. | | D
F
IRL
|
|
Jania rubens / Jania Red Alga ? |
| Rhodophytina / Red Algae | | Cor
Sam
|
|
Juncus / Rush (3) |
| Juncaceae / Rush Fam. | | |
|
Laminaria hyperborea / Cuvie |
| Fucaceae / Seaweeds | | D
|
|
Lemna / Duckweed (5) |
| Araceae / Arum Fam. | | |
|
Limosella aquatica / Water Mudwort |
| Scrophulariaceae / Figwort Fam. | | D
S
|
|
Lindernia / False Pimpernel (2) |
| Linderniaceae / False Pimpernel Fam. | | |
|
Ludwigia / Hampshire Purslane (5) |
| Onagraceae / Willowherb Fam. | | |
|
Lycopus / Gipsywort (2) |
| Lamiaceae / Mint Fam. | | |
|
Lysimachia / Loosestrife (3) |
| Primulaceae / Primrose Fam. | | |
|
Lythrum portula / Water Purslane |
| Lythraceae / Purple Loosestrife Fam. | | D
F
|
|
Marsilea quadrifolia / Four-Leaf Clover, Shamrock Plant |
| Marsileaceae / Water Clover Fam. | | D
F
|
|
Mastocarpus stellatus / False Irish Moss, Grapeweed ? |
| Rhodophytina / Red Algae | | NL
|
|
Mentha aquatica / Water Mint |
| Lamiaceae / Mint Fam. | | D
GR
HR
I
IRL
|
|
Menyanthes trifoliata / Bogbean |
| Menyanthaceae / Bogbean Fam. | | A
D
I
|
|
Montia / Blinks (2) |
| Montiaceae / Montia Fam. | | |
|
Myosotis scorpioides agg. / Water Forget-me-not |
| Boraginaceae / Borrage Fam. | | D
F
HR
IRL
|
|
Myriophyllum / Water Milfoil (4) |
| Haloragaceae / Water Milfoil Fam. | | |
|
Najas / Najad (3) |
| Hydrocharitaceae / Frogbit Fam. | | |
|
Narthecium ossifragum / Bog Asphodel |
| Nartheciaceae / Bog Asphodel Fam. | | D
F
GB
IRL
|
|
Nasturtium / Water Cress (2) |
| Brassicaceae / Crucifers | | |
|
Nostoc pruniforme / Mare's Eggs |
| Nostocaceae / Blue-Green Algae | | D
|
|
Nuphar lutea / Yellow Water Lily |
| Nymphaeaceae / Water Lily Fam. | | D
HR
I
|
|
Nymphaea / Water-Lily (2) |
| Nymphaeaceae / Water Lily Fam. | | |
|
Nymphoides peltata / Yellow Floating-Heart, Fringed Water Lily |
| Menyanthaceae / Bogbean Fam. | | D
|
|
Oenanthe / Water Dropwort (5) |
| Apiaceae / Umbellifers | | |
|
Oryza sativa / Rice |
| Poaceae / Grass Fam. | | D
F
|
|
Padina pavonica / Peacock's Tail |
| Fucaceae / Seaweeds | | Chi
E
GR
|
|
Palmaria palmata / Dulse, Dillisk |
| Rhodophytina / Red Algae | | NL
|
|
Palustriella commutata / Curled Hook Moss |
| Musci / Mosses | | D
HR
|
|
Persicaria amphibia / Water Knotweed, Willow Grass |
| Polygonaceae / Knotweed Fam. | | D
E
IRL
S
|
|
Pinguicula / Butterwort (8) |
| Lentibulariaceae / Bladderwort Fam. | | |
|
Polysiphonia urceolata / Pitcher Siphon Weed ? |
| Rhodophytina / Red Algae | | S
|
|
Posidonia oceanica / Seagrass |
| Posidoniaceae / Seagrass Fam. | | Cor
Kef
Mal
|
|
Potamogeton / Pontweed (17) |
| Potamogetonaceae / Pontweed Fam. | | |
|
Ranunculus / Buttercup (7) |
| Ranunculaceae / Buttercup Fam. | | |
|
Rhodophytina / Red Alga (11) |
| Rhodophytina / Red Algae | | |
|
Rhynchospora / Beak Sedge (2) |
| Cyperaceae / Sedge Fam. | | |
|
Riccia / Crystalwort (4) |
| Ricciales / Crystalworts | | |
|
Rorippa aquatica / Water Cabbage ? |
| Brassicaceae / Crucifers | | D
|
|
Rumex / Dock,Sorrel (2) |
| Polygonaceae / Knotweed Fam. | | |
|
Ruppia maritima / Ditch Grass, Widgeon Grass |
| Ruppiaceae / Ditch-Grass Fam. | | NL
|
|
Sagittaria / Arrowhead (2) |
| Alismataceae / Water Plantain Fam. | | |
|
Salvinia natans / Floating Moss |
| Salviniaceae / Floating Fern Fam. | | D
|
|
Samolus valerandi / Brookweed |
| Primulaceae / Primrose Fam. | | Cor
D
F
GR
Kef
NL
|
|
Sargassum muticum / Japweed |
| Fucaceae / Seaweeds | | I
NL
Sam
|
|
Saxifraga aquatica / Pyrenean Water Saxifrage |
| Saxifragaceae / Saxifrage Fam. | | F
|
|
Scheuchzeria palustris / Rannoch Rush, Marsh Scheuchzeria |
| Scheuchzeriaceae / Rannoch Rush Fam. | | D
S
|
|
Scrophularia / Figwort (3) |
| Scrophulariaceae / Figwort Fam. | | |
|
Shinnersia rivularis / Mexican Oakleaf, Rio Grande Bugheal |
| Asteraceae / Composite Fam. | | A
|
|
Sium latifolium / Greater Water Parsnip |
| Apiaceae / Umbellifers | | A
D
|
|
Sparganium / Bur-Reed (5) |
| Typhaceae / Bulrush Fam. | | |
|
Sphagnum / Sphagnum,Bog Moss (13) |
| Sphagnopsida / Bog Mosses | | |
|
Spirodela polyrhiza / Greater Duckweed |
| Araceae / Arum Fam. | | D
S
|
|
Sporobolus anglicus / Common Cord-Grass |
| Poaceae / Grass Fam. | | IRL
NL
|
|
Stellaria alsine / Bog Stitchwort |
| Caryophyllaceae / Campion Fam. | | D
|
|
Stratiotes aloides / Water Soldier |
| Hydrocharitaceae / Frogbit Fam. | | D
|
|
Taonia atomaria / Seaweed |
| Fucaceae / Seaweeds | | HR
|
|
Tofieldia calyculata / Mountain Scottish Asphodel |
| Tofieldiaceae / Tofieldia Fam. | | A
D
F
HR
I
SLO
|
|
Trapa natans / Water Caltrop |
| Lythraceae / Purple Loosestrife Fam. | | D
F
|
|
Trichophorum / Deer Grass (2) |
| Cyperaceae / Sedge Fam. | | |
|
Triglochin / Arrowgrass (2) |
| Juncaginaceae / Arrowgrass Fam. | | |
|
Tripolium / Aster (2) |
| Asteraceae / Composite Fam. | | |
|
Typha / Bulrush (6) |
| Typhaceae / Bulrush Fam. | | |
|
Ulva lactuca / Sea Lettuce |
| Ulvales / Green Algae | | NL
|
|
Ulvales / Green Algae (7) |
| Ulvales / Green Algae | | |
|
Utricularia / Bladderwort (7) |
| Lentibulariaceae / Bladderwort Fam. | | |
|
Vallisneria / Tape Grass (2) |
| Hydrocharitaceae / Frogbit Fam. | | |
|
Veronica / Speedwell (4) |
| Plantaginaceae / Plantain Fam. | | |
|
Viola palustris / Marsh Violet |
| Violaceae / Violet Fam. | | A
D
F
|
|
Wolffia / Water-Meal (2) |
| Araceae / Arum Fam. | | |
|
Zannichellia palustris / Horned Pondweed |
| Potamogetonaceae / Pontweed Fam. | | D
|
|
Zantedeschia aethiopica / Calla Lily, Arum Lily |
| Araceae / Arum Fam. | | Kre
Rho
|
|
Zostera marina / Eelgrass |
| Zosteraceae / Sea Grass Fam. | | Chi
Cor
D
GR
S
Sam
|
| |
| |
| |
| |
| |
| |
Genus with more than one available species has been opened.