Children (9 direct children, 9 direct and indirect children):
Pilularia globulifera
Pillwort
Pilularia minuta
Dwarf pillwort
Pilularia americana
American pillwort
Pilularia novae-zelandiae
Pilularia novae-hollandiae
Pilularia dracomontana
Pilularia bokkeveldensis
Pilularia natans
Pilularia valdiviana