Children (6 direct children, 6 direct and indirect children):
Potamogeton pusillus subsp. tenuissimus
Small pondweed
Potamogeton pusillus subsp. gemmiparus
Small pondweed
Potamogeton pusillus subsp. pusillus
Small pondweed
Potamogeton pusillus var. gemmiparus
Potamogeton pusillus var. tenuissimus
Potamogeton pusillus var. polyphyllus