Alpine Pondweed, Northern Pondweed, Reddish Pondweed: Potamogeton alpinus (Synonyms: Potamogeton alpinus ssp. tenuifolius, Potamogeton alpinus var. subellipticus, Potamogeton alpinus var. tenuifolius ) -
Broad-leaved Pondweed, Large-leaved Pondweed: Potamogeton amplifolius
Berchtold's Pondweed: Potamogeton berchtoldii (Synonyms: Potamogeton berchtoldii var. colpophilus, Potamogeton berchtoldii var. lacunatus , Potamogeton berchtoldii var. polyphyllus, Potamogeton berchtoldii var. tenuissimus, Potamogeton pusillus ssp. tenuissimus,Potamogeton pusillus var. tenuissimus) -
Curled Pondweed, Curly Pondweed: Potamogeton crispus -
Leafy Pondweed: Potamogeton foliosus (Synonyms: Potamogeton curtissii, Potamogeton foliosus ssp. foliosus, Potamogeton foliosus var. foliosus, Potamogeton foliosus var. macellus) -
Illinois Pondweed: Potamogeton illinoiensis (Synonym: Potamogeton lucens) -
Floating Pondweed, Floating-leaved Pondweed: Potamogeton natans -
Loddon's Pondweed, Long-leaf Pondweed, Long-leaved Pondweed: Potamogeton nodosus (Synonym: Potamogeton americanus) -
Small Pondweed: Potamogeton pusillus (Synonym: Potamogeton panormitanus, Potamogeton pusillus ssp. pusillus, Potamogeton pusillus var. minor, Potatmogeton pusillus var. pusillus) -
Berchtold's Pondweed: Potamogeton pusillus ssp. tenuissimus (Synonyms: Potamogeton berchtoldii, Potamogeton berchtoldii var. colpophilus, Potamogeton berchtoldii var. lacunatus, Potamogeton berchtoldii var. polyphyllus, Potamogeton berchtoldii var. tenuissimus, Potamogeton pusillus var. tenuissimus) -
Eel-grass Pondweed, Flatstem Pondweed, Flat-stem Pondweed: Potamogeton zosteriformis (Synonym: Potamogeton compressus) -
Fennel-leaved Pondweed, Sago Pondweed, Sago-pondweed: Stuckenia pectinata (Synonym: Potamogeton pectinatus) -
Horned-pondweed, Horned Pondweed: Zannichellia palustris (Synonym: Zannichellia palustris var. stenophylla) -