Children (10 direct children, 378 direct and indirect children):
Lepilaena
(tree size 6)
Zannichellia
(tree size 20)
Potamogeton
(tree size 291)
Pondweed
Groenlandia
(tree size 1)
Althenia
(tree size 15)
Stuckenia
(tree size 32)
Pondweed
Pseudalthenia
(tree size 1)
Vleisia
(tree size 1)
Coleogeton
Buccaferrea
(tree size 1)