Rhodymenia is an aquatic plant that belongs to the Rhodophyta division. This type of plant is commonly referred to as red algae due to their color. Rhodymenia is known by various other names, including Dulse, Palmaria palmata, nori, and Irish Moss. Dulse, like Rhodymenia, contains high amounts of iodine, which makes it an essential food source for many. Palmaria palmata, or Irish Moss, is commonly used in food as a thickening agent. Nori is widely used in sushi preparation and is a delicacy in many parts of the world. In conclusion, Rhodymenia has many synonyms, and its various names are attributed to its diverse usage in food and other applications.