Iva Xanthifolia is a type of flowering plant that belongs to the Asteraceae family. It is commonly found in the southern United States and is known for its bright yellow flowers. Although Iva Xanthifolia is the scientific name of this plant, there are several other names that it goes by, commonly known as synonyms. These synonyms include Iva annua, Iva angustifolia, and Iva ciliata. These names are used interchangeably and refer to the same species of plant. Additionally, Iva Xanthifolia has several common names, including yellow marsh-elder and poverty weed. Whatever the name, this plant is a stunning addition to any garden.