Xanthium (cocklebur) is a genus of flowering plants in the tribe Heliantheae within the family Asteraceae, native to the Americas and eastern Asia and some parts of south Asia.<115Xanthium Plantarum'<115
Ditrysinia is a plant genus of the family Euphorbiaceae first described as a genus in 1825. It contains only one recognized species, Ditrysinia fruticosa, the Gulf Sebastian-bush, native to the southeastern United States.
Triglochin is a plant genus in the family Juncaginaceae described by Carl Linnaeus in 1753. It includes 25 known species. It is very nearly cosmopolitan in distribution, with species on every continent except Antarctica. North America has four accepted species, two of which can also be found in Europe: Triglochin palustris and Triglochin maritima. Australia has many more.
Helenium is a genus of annuals and herbaceous perennial plants in the family Asteraceae, native to the Americas.
Iva annua, the annual marsh elder or sumpweed, is a North American herbaceous annual plant in the family Asteraceae that was historically cultivated by Native Americans for its edible seed.
Berlandiera is a genus of flowering plants in the family Asteraceae.
Baccharis halimifolia is a North American species of shrubs in the family Asteraceae. It is native to Nova Scotia, the eastern and southern United States, eastern Mexico, the Bahamas, and Cuba.
Chaetopappa is a genus of plants in the family Asteraceae which are known generally as leastdaisies.
Hymenopappus is a genus of flowering plants in the daisy family. Many species are known as woollywhites.
Diaperia is a genus of flowering plants in the family Asteraceae, formerly considered part of Evax. Common names include "rabbit's tobacco" and "dwarf cudweed." These are annual herbs native to the northern Mexico and the central and southern United States, primarily the Great Plains.
Polymnia is a genus of American plants in the sunflower family. It is the only genus in the tribe Polymnieae. Several species are known by the common name leafcup.
Thalia dealbata, the powdery alligator-flag, hardy canna, or powdery thalia, is an aquatic plant in the family Marantaceae, native to swamps, ponds and other wetlands in the southern and central United States. Its range includes much of Coastal Plains and the lower Mississippi Valley. The plant has been grown as an aquatic ornamental because of the pretty violet flowers, and in cultivation has been proved hardy as far north as Philadelphia (Pennsylvania) and Vancouver.
Iva frutescens is a species of flowering plant in the family Asteraceae known by the common names Jesuit's bark, bigleaf marsh-elder, and high-tide bush. It grows in coastal eastern North America from Nova Scotia down the eastern coast and along the Gulf Coast to Texas.
Iva imbricata is a North American species of flowering plant in the family Asteraceae known by the common names dune marsh-elder and seacoast marsh elder. It is native to Cuba, the Bahamas, and coastal areas of the United States from Texas to Virginia. It is a low shrub, found on sand dunes and the upper beach. It is a highly salt tolerant plant, and is often the perennial plant closest to the ocean.
Nabalus barbatus, the barbed rattlesnakeroot, is a plant in the family Asteraceae. It is native to the Southeastern United States where it is found in small numbers in a few disjunct areas of remaining natural grassland. Because of this, it is considered a globally rare species, with only 35-70 remaining populations. Much of its natural habitat of prairie and savanna has been destroyed. In 2010 it was reclassified from the genus Prenanthes to Nabalus.
Euphrosyne dealbata, commonly known as copperweed or woolly marsh elder, is a species of plant in the family Asteraceae. It is found in western North America where it is native to northern Mexico, and the south-western United States.
Berlandiera pumila, the soft greeneyes, is a North American species of flowering plant in the family Asteraceae. It is native to the southeastern and south-central United States.
Croptilon divaricatum, called the slender scratchdaisy, is a North American species of flowering plants in the tribe Astereae within the family Asteraceae. It is native to the southeastern and south-central United States, in the states of Texas, Oklahoma, Arkansas, Louisiana, Mississippi, Alabama, Florida, Georgia, Virginia, and the Carolinas.
Iva angustifolia is a species of flowering plant in the family Asteraceae known by the common name narrowleaf marsh elder. It grows in the south-central and southeastern United States.
Iva asperifolia, the Pensacola marsh elder, is a species of flowering plant in the family Asteraceae. It grows in the south-central United States. It has also been found in the state of Veracruz in eastern Mexico.
