| | Plattdeutscher Name | Deutscher Name | Englischer Name | Botanischer Name | | Waterfloett (Ostfriesland) | Wasserlinse, Kleine | Duckweed, Common | Lemna minor |
| Waterjeern | Binse, Kroeten- | Rush, Toad | Juncus bufonius |
| Waterkersse | Brunnenkresse, Echte | Cress, Water | Nasturtium officinale |
| Waterkersse | Brunnenkresse, Echte | Watercress | Nasturtium officinale |
| Waterklawer (Ostfriesland) | Fieberklee | Trefoil, Water | Menyanthes trifoliata |
| Waterlees (Vierlande/Hamburg) | Wasserlinse, Kleine | Duckweed, Common | Lemna minor |
| Waterlilige (Westfalen) | Schwertlilie, Sumpf- | Flag, Yellow | Iris pseudacorus |
| Watermint | Minze, Wasser- | Horsemint | Mentha aquatica |
| Watermint | Minze, Wasser- | Mint, Water | Mentha aquatica |
| Watermuent | Minze, Wasser- | Horsemint | Mentha aquatica |
| Watermuent | Minze, Wasser- | Mint, Water | Mentha aquatica |
| Waterpiel (Ostfriesland) | Pfeilkraut, Gewoehnliches | Arrowhead, Common | Sagittaria sagittifolia |
| Waterpueppkes (Osnabrueck) | Seerose, Weisse | Water Lily, White | Nymphaea alba |
| Waterranken | Nachtschatten, Bittersuesser | Nightshade, Deadly | Solanum dulcamara |
| Waterrause (Muensterland) | Seerose, Weisse | Water Lily, White | Nymphaea alba |
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