Are Actaea and Nymphoides both aquatic plants?
Actaea (plant) Actaea, commonly called baneberry, bugbane and cohosh, is a genus of flowering plants belonging to the family Ranunculaceae, native to subtropical, temperate and subartic regions of the Europe, Asia and North America.
Ruppia bicarpa Ruppia bicarpa is an aquatic plant species in the genus "Ruppia" of Ruppiaceae. It is found in shallow waters.