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 depauperatum, commonly known as serpentine aster or starved aster, is a rare species in the family Asteraceae adapted to serpentine barrens, an ecosystem with a high concentration of toxic metals in the soil. It has been found in Pennsylvania, Maryland, and on some diabase glades in North Carolina. It grows to 50 centimeters and has white ray florets surrounding a center of yellow disk florets.
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 grandiflorum, the largeflower aster, is a species of flowering plant in the family Asteraceae. It is endemic to the southeastern United States where it is restricted to the Atlantic coastal plain of Virginia, North Carolina, and South Carolina, and the Piedmont of North Carolina and South Carolina. It is known from habitats such as sandy areas, roadsides, thickets, and forest edges. It can be distinguished from other Symphyotrichum species by its taller and hairier stems, clasping lower leaves, and large, showy flower heads. It is possibly threatened by habitat destruction within its restricted range but is still considered locally abundant in many areas such as the southern Appalachian Mountains.
Symphyotrichum patens, commonly known as late purple aster or spreading aster, is a perennial, herbaceous plant found in the eastern United States.
Sanrobertia is a genus of flowering plants within the subtribe Symphyotrichinae of the family Asteraceae. It is monotypic, meaning there is only one species within the genus. Sanrobertia gypsophila is a rare endemic known only from Nuevo León, Mexico.
Symphyotrichum subspicatum is a species of flowering plant in the family Asteraceae native to western North America. Commonly known as Douglas's aster, it is a perennial, herbaceous plant that may reach 40 to 120 centimeters tall. Its flowers have violet ray florets and yellow then reddish disk florets.
Symphyotrichum bullatum is a species of flowering plant in the family Asteraceae native to Mexico and Central America.
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 regnellii is a species of herbaceous flowering plants in the family Asteraceae native to Argentina and Brazil. It grows 60 to 120 centimeters in height. Its flowers have white to pink ray florets that are 3 millimeters long. It grows in swamps and wet savannas.
Symphyotrichum carnerosanum is a species of flowering plant in the family Asteraceae endemic to the Mexican states of Coahuila, Nuevo León, and Tamaulipas.
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 trilineatum is a species of flowering plant in the family Asteraceae native from Mexico to Guatemala.
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.
