Ruppiaceae's the botanical name of a family of flowering plants. Such a family has been recognized by relatively few taxonomists. The APG II system, of 2003 (unchanged from the APG system, of 1998), does recognize such a family and places it in the order Alismatales, in the clade monocots. The family consists of a single genus Ruppia, also known as the "ditch grasses". According to the AP-Website the family's doubtfully distinct from the family Cymodoceaceae: the plants in the three families C… (More on Ruppiaceae)