Rudbeckia hirta, commonly called black-eyed Susan, is a North American flowering plant in the family Asteraceae, native to Eastern and Central North America and naturalized in the Western part of the continent as well as in China. It has now been found in all 10 Canadian Provinces and all 48 of the states in the contiguous United States.
Helenium autumnale is a North American species of flowering plants in the family Asteraceae. Common names include common sneezeweed and large-flowered sneezeweed.
Flaveria trinervia is a species of flowering plant in the family Asteraceae known by the common names clustered yellowtops, speedyweed, and yellow twinstem. It is native to parts of the Americas, including the southeastern and southwestern United States, most of the Bahamas, Mexico, Belize, and parts of the Caribbean, especially Cuba, Cayman Islands, Jamaica, Hispaniola, Puerto Rico and Barbados. It is also known in many other places as an introduced species and often a noxious weed, such as in Hawaii.
Helenium flexuosum is a North American plant species in the daisy family known by the common name purple sneezeweed. It is widespread across much of eastern and central United States and Canada, from Nova Scotia west to Ontario, Minnesota, and Kansas, south to Florida, Louisiana, and eastern Texas.
Flaveria chlorifolia, the clasping yellowtops, is a North American plant species of Flaveria within the family Asteraceae. It is native to the southwestern United States and northern Mexico.
Flaveria campestris, common name alkali yellowtops, is a plant species native to the southwestern United States and to the southern Great Plains. It is found on saline soils and on the margins of lakes, ponds and streams.
Flaveria bidentis, the coastal plain yellowtops, is a South American plant species of Flaveria within the family Asteraceae. It is native to South America, and naturalized in many places.
Flaveria brownii, or Brown's yellowtops, is a North American plant species of Flaveria within the family Asteraceae. It is found only in the coastal regions of southern Texas in the United States. It grows primarily in sand dunes and salt marshes close to the Gulf of Mexico.
Flaveria pubescens is a rare Mexican plant species of Flaveria within the family Asteraceae. It has been found only in the States of Tamaulipas and San Luis Potosí in northeastern Mexico.
Flaveria oppositifolia is a rare Mexican plant species of Flaveria within the family Asteraceae. It has been found only in northeastern Mexico, from Tamaulipas west to Coahuila, south as far as Hidalgo and Aguascalientes. Some sources report the species to be present in the State of Texas in the United States, but the Texas populations have been recognized as a distinct species, F. brownii.
Flaveria linearis, known as narrowleaf yellowtops, is a North American plant species of Flaveria within the family Asteraceae. It is native to Florida, Cuba, Bahamas, and the Yucatán Peninsula of Mexico.
Flaveria sonorensis is a rare Mexican plant species of Flaveria within the family Asteraceae. It has been found only in southern Sonora and southwestern Chihuahua in northwestern Mexico. Some of the populations lie very close to hot mineral springs.
Flaveria angustifolia is a Mexican plant species of yellowtops within the family Asteraceae. It has been found only in central Mexico, in Oaxaca, Guerrero, Puebla, and the Distrito Federal.
Flaveria pringlei is a Mexican plant species of Flaveria within the family Asteraceae. It has been found only in central Mexico, in Guerrero, Puebla, and northwestern Oaxaca.
Flaveria mcdougallii is a very rare North American plant species of Flaveria within the family Asteraceae. It has been found in 4 locations in the Grand Canyon in northwestern Arizona in the southwestern United States, in Mohave County and Coconino County. Many of the populations lie inside Grand Canyon National Park, others within the Hualapai Indian Reservation.
Flaveria palmeri is a rare Mexican plant species of Flaveria within the family Asteraceae. It has been found only in the States of Coahuila and Nuevo León in northeastern Mexico.
Flaveria anomala is a Mexican plant species of yellowtops within the family Asteraceae. It has been found only in northeastern Mexico, in Coahuila, San Luis Potosí, Tamaulipas, Nuevo León, and Zacatecas.
Flaveria ramosissima is a rare Mexican plant species of Flaveria within the family Asteraceae. It has been found only in the States of Puebla and Oaxaca in central Mexico.
Heliomeris longifolia is a North American species of flowering plants in the family Asteraceae called the longleaf false goldeneye. It is widespread across much of Mexico from Chihuahua and Sonora south to Chiapas, and found also in the southwestern United States from Nevada to western Texas.
Tetraneuris argentea, the perkysue, is a North American species of plants in the sunflower family. It grows in the southwestern United States, primarily in Arizona and New Mexico with additional populations in Utah, Colorado, and the Texas Panhandle.
