Erigeron abajoensis, the Abajo fleabane, is a species of Erigeron in the family Asteraceae. It is native to Utah in the western United States, and has been found also in neighboring parts of Arizona, Colorado, and New Mexico. It grows on sunny, dry, rocky slopes generally at elevations of 2,270 to 3,400 meters.
Conyza is a genus of flowering plants in the family Asteraceae.
Erigeron bonariensis is a species in the family Asteraceae, found throughout the tropics and subtropics as a pioneer plant; its precise origin is unknown, but most likely it stems from Central America or South America. It has become naturalized in many other regions, including North America, Europe and Australia. Common names include flax-leaf fleabane, wavy-leaf fleabane, Argentine fleabane, hairy horseweed, asthma weed and hairy fleabane.
Erigeron canadensis is an annual plant native throughout most of North America and Central America. It is also widely naturalized in Eurasia and Australia. Common names include horseweed, Canadian horseweed, Canadian fleabane, coltstail, marestail, and butterweed. It was the first weed to have developed glyphosate resistance, reported in 2001 from Delaware.
Erigeron breweri is a North American species of flowering plants in the family Asteraceae known by the common name Brewer's fleabane.
Erigeron eatonii is a North American species of flowering plants in the family Asteraceae known by the common name Eaton's fleabane.
Erigeron peregrinus is a North American species of flowering plants in the family Asteraceae known by the common name wandering fleabane.
Erigeron pulchellus, the Robin's plantain, blue spring daisy or hairy fleabane, is a North American species of plants in the family Asteraceae. It is widespread across much of the United States and Canada from Québec and Ontario south as far as eastern Texas and the Florida Panhandle.
Erigeron pumilus, the shaggy fleabane, or vernal daisy, is a hairy North American species of perennial plants in the family Asteraceae. It is widespread across much of western Canada and the western United States, from British Columbia east to Saskatchewan and south as far as Oklahoma and the San Bernardino Mountains of California. There have been reports of the plant growing in Yukon Territory, but these were based on misidentified specimens.
Erigeron alpiniformis is a rare Arctic species of flowering plants in the family Asteraceae, and one of several plants known by the common name alpine fleabane. It has been found only in Greenland and in Labrador and Nunavut in Canada.
Erigeron arenarioides is a species of flowering plant in the family Asteraceae known by the common names sand fleabane and Wasatch fleabane. It has been found only in the northern part of the state of Utah in the western United States.
Erigeron arisolius is a species of flowering plant in the family Asteraceae known by the common names arid throne fleabane and dry-sun fleabane. It is native to the southwestern United States (Arizona) and northwestern Mexico (Sonora).
Erigeron bellidiastrum, the western daisy fleabane or sand fleabane, is a species of fleabane in the family Asteraceae. It is native to northern Mexico and the western and central United States.
Erigeron consimilis is a North American species of flowering plants in the family Asteraceae known by the common names foothill fleabane and San Rafael fleabane. It is found in the western United States: Arizona, New Mexico, Utah, Colorado, Wyoming.
Erigeron cronquistii is a rare North American species of flowering plants in the family Asteraceae known by the common name Cronquist's fleabane. It has been found only in the Bear River Range in Cache County in the northern part of the state of Utah in the United States.
Erigeron grandiflorus is a North American species of flowering plant in the family Asteraceae known by the common names Rocky Mountain alpine fleabane and largeflower fleabane.
Erigeron ovinus is a rare North American species of flowering plant in the family Asteraceae, called the sheep fleabane. It has been found only in the southeastern part of the US state of Nevada.
Erigeron poliospermus is a species of flowering plant in the family Asteraceae known by the common names gray-seeded fleabane, purple cushion fleabane, and hairy-seed fleabane. Native to western North America, it is mainly found to the east of the Cascade Range in Washington, Oregon, and Idaho.
Erigeron radicatus is a North American species of flowering plant in the family Asteraceae known by the common names Hooker's fleabane and taproot fleabane The species grows in central Canada and parts of the north-central United States, primarily the northern Rocky Mountains and the Black Hills. It has been found in Idaho, Montana, Utah, Wyoming, Colorado, Nebraska, and South Dakota, with a few isolated populations reported from North Dakota.
Erigeron sionis is a North American species of flowering plant in the family Asteraceae known by the common name Zion fleabane. It has been found in the southwestern United States, only in southern Utah. Some of the populations are inside Zion National Park, after which the species is named.
