In Botany it is the name of a plant similar to reeds, it is aquatic and belonging to the genus Acorus. They are known as Calamos, reeds or aquatic callamos. The scientific name is Acorus calamus and they are from the family Acoraceae. It has medicinal uses. It is also used as a filter material in wastewater treatments the same as Phragmitis comunis. It was formerly classified as an aberrant member of the Araceae family, but this term does not exist in the current taxonomy.
