Children (11 direct children, 192 direct and indirect children):
Pilularia
(tree size 9)
Pillwort
Regnellites
(tree size 1)
Rodeites
(tree size 1)
Marsilea
(tree size 149)
Waterclover
Regnellidium
(tree size 2)
Calamistrum
(tree size 6)
Lemma
(tree size 2)
Zalusianskya
(tree size 4)
Zaluzianskia
(tree size 7)
Spheroidia
Marsileoideae