Genus Iva is a type of plant commonly known as marsh elder, which belongs to the family Asteraceae. There are several synonyms that are used to refer to this plant such as Iva, Marsh Fleabane, and Saltmarsh Elder. These synonyms are used interchangeably by botanists and horticulturists to describe the plant's physical characteristics and growing habits. The plant is endemic to North America and can be found in marshy areas, near saltwater, or in wetlands. The Iva or Marsh elder has small yellow flowers and grows up to 5 feet tall. The different synonyms for the plant, allow it to be identified and studied by researchers and enthusiasts alike.