is a perennial plant, colloquially referred to as bitter, water or marsh clover. Since the 16th century it has been used for stomach disorders and loss of appetite. It is up to 30 cm tall. Leaves are fleshy, trifoliate. White, dense fimbriate blossom grows out of long rootstock in May to June. It occurs in peaty meadows, ditches, spring areas, edges of pools. Bogbean belongs among CZ endangered plants.