Symphyotrichum is a genus of over 100 species and naturally occurring hybrids of herbaceous annual and perennial plants in the composite family, Asteraceae, most which were formerly treated within the genus Aster. The majority are endemic to North America, but several also occur in the West Indies, Central and South America, as well as in eastern Eurasia. Several species have been introduced to Europe as garden specimens, most notably New England aster and New York aster.
Symphyotrichum eatonii is a species of aster known by the common name Eaton's aster. It is native to much of western North America from British Columbia to Saskatchewan, the Sierra Nevada in California, the Rocky Mountains region, to Arizona and New Mexico, where it grows in many habitats, especially wet areas such as meadows and near ditches.
Symphyotrichum dumosum is a species of flowering plant of the family Asteraceae commonly known as rice button aster and bushy aster. It is native to much of eastern and central North America, as well as Haiti and Dominican Republic. It is a perennial, herbaceous plant that may reach a height of 1 meter.
Symphyotrichum subulatum, commonly known as eastern annual saltmarsh aster or, in Britain and Ireland where it is naturalized, annual saltmarsh aster, is an annual plant in the family Asteraceae native to the eastern United States and the Gulf Coast to Texas. The species grows primarily in coastal salt marshes, although in the Ozarks it occurs as a non-marine weedy variety.
Symphyotrichum boreale is a species of flowering plant of the aster family (Asteraceae) native to North America. Commonly known as rush aster, northern bog aster, and slender white aster, it is a perennial, herbaceous plant that may reach heights of 85 centimetres.
Symphyotrichum glabrifolium is a species of flowering plant in the family Asteraceae native to Argentina and Chile where it inhabits wet meadows and stream edges. It is a perennial, herbaceous plant that grows 5 to 25 centimeters tall. Its flowers have white or lilac ray florets and yellow disk florets.
Symphyotrichum graminifolium is a species of flowering plant in the family Asteraceae native to the South American countries of Argentina, Bolivia, Brazil, Paraguay, and Uruguay. It is a perennial, herbaceous plant that grows to 1.5 meters tall. Its numerous flowers are in broad corymbiform arrays with lilac or bluish ray florets.
Symphyotrichum martii is a species of flowering plant in the family Asteraceae endemic to Minas Gerais, Brazil. It is a perennial, herbaceous, hairless plant whose flowers have about 30 white ray florets.
Symphyotrichum patagonicum is a species of flowering plant in the family Asteraceae endemic to the Argentinian provinces of Chubut, Mendoza, Neuquén, and Santa Cruz. It is an annual, herbaceous plant that grows 3 to 30 centimeters tall. Its flowers have short white ray florets in 3 or 4 series and numerous disk florets.
Symphyotrichum peteroanum is a species of flowering plant in the family Asteraceae endemic to Argentina and Chile. It is a perennial, herbaceous plant that grows 20 to 60 centimeters tall. Its flowers have white ray florets in one series that are 6–8 millimeters long. It grows in tall forests with trees that exceed 15 meters at elevations of 1,000–2,200 meters in humid montane ecosystems.
Symphyotrichum vahlii is a species of flowering plant in the family Asteraceae native to South America, specifically Bolivia, Chile, Argentina, and the Falkland Islands. It is herbaceous and grows 10 to 60 centimeters tall. Its flowers have white ray florets of length 6 millimeters. It grows in wetland areas of tall forests with trees that exceed 15 meters. One infraspecies is accepted, Symphyotrichum vahlii var. tenuifolium, in addition to the autonym S. vahlii var. vahlii.
Symphyotrichum leone is a species of flowering plant in the family Asteraceae native to Cuba. It is also spelled Symphyotrichum leonis.
Symphyotrichum hintonii is a species of perennial, herbaceous, flowering plant in the family Asteraceae native to Guerrero, Mexico. It grows in oak and oak-pine woods at elevations of 1,400–2,200 meters, blooming white ray florets November–January. It reaches heights of about 40–80 centimeters.
Symphyotrichum moranense is a species of flowering plant in the family Asteraceae. It is a perennial and herbaceous plant that reaches about 90 centimeters in height. Its white ray florets open October through April, and it is native to Mexico.
Symphyotrichum bimater is a species of flowering plant in the family Asteraceae that is native to the states of Chiapas and Oaxaca in Mexico, and to Guatemala. It is perennial and herbaceous and grows to heights of 30–46 centimeters. Its white ray florets bloom May–December, and it grows in pine-oak woods, ravines, slopes, and grassy openings at elevations 1,000–2,150 meters.
Symphyotrichum chihuahuense is a species of flowering plant in the family Asteraceae that is native to Chihuahua and Durango, Mexico. It is perennial and herbaceous and reaches heights of 20–35 centimeters. Its white ray florets open June–September, and it grows in grasslands and oak–pine woods at elevations 1,800–2,500 meters.
Symphyotrichum turneri is a species of flowering plant in the family Asteraceae native to Durango, Mexico.
Symphyotrichum divaricatum is an annual and herbaceous plant commonly known as southern annual saltmarsh aster. It is native to the southern United States and some northern states of Mexico.
Symphyotrichum parviflorum is an annual and herbaceous plant commonly known as southwestern annual saltmarsh aster. It is native to Mexico, the Caribbean, most of Central America, Ecuador, and the southwestern United States. It is also known by the scientific name Symphyotrichum expansum.
