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619 aroids, water plantains, seagrass, and allies species
Potamogeton amplifolius
Lemna trisulca
Potamogeton epihydrus
Triglochin palustris
Potamogeton robbinsii
Sagittaria rigida
Stuckenia pectinata
Triantha occidentalis
Potamogeton gramineus
Potamogeton zosteriformis
Potamogeton nodosus
Potamogeton perfoliatus
Potamogeton praelongus
Lemna turionifera
Najas flexilis
Alisma subcordatum
Sagittaria graminea
Potamogeton spirillus
Zostera japonica
Sagittaria brevirostra
Zannichellia palustris
Elodea nuttallii
Tofieldia coccinea
Potamogeton illinoensis
Potamogeton alpinus
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