Symphyotrichum novae-angliae is a species of flowering plant in the aster family (Asteraceae) native to central and eastern North America. Commonly known as New England aster, hairy Michaelmas-daisy, or Michaelmas daisy, it is a perennial, herbaceous plant usually between 30 and 120 centimeters tall and 60 to 90 cm wide.
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 one species in eastern Eurasia. Several species have been introduced to Europe as garden specimens, most notably New England aster and New York aster.
Symphyotrichum frondosum is a species of flowering plant in the family Asteraceae native to western North America. Commonly known as short-rayed alkali aster, it is an annual or perennial herbaceous plant that may reach 140 centimeters tall.
Aphyllocladus is a genus of flowering plants in the family Asteraceae.
Symphyotrichum oblongifolium, commonly known as aromatic aster or oblong-leaved aster, is a species of flowering plant in the family Asteraceae and is native to parts of the eastern and central United States. It is an uncommon herbaceous perennial that reaches heights of 10–80 centimeters and blooms August–November with many flower heads in various shades of purple.
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.
Famatinanthus is a genus in the family Asteraceae that was described in 2014 and has been assigned to its own tribe Famatinantheae and subfamily Famatinanthoideae. It contains only one known species, F. decussatus, a small shrub of ½—1¾ m high that is an endemic of the Andes of north-western Argentina, with small, entire, oppositely set leaves and flowerheads containing about ten cream-colored, ray and disk florets, with backward coiled lobes. It is locally known as sacansa. For more than 100 years, the species was known to science only from the type collection. It was described in 1885 and originally assigned to the genus Aphyllocladus.
John Cameron Semple is a botanist, cytotaxonomist, professor emeritus, and adjunct professor at the University of Waterloo in Ontario, Canada. He was born in Boston and earned a degree of Bachelor of Science in 1969 from Tufts University, followed in 1971 and 1972 by Master of Arts and Doctor of Philosophy degrees from Washington University in St. Louis. Semple is known for his work with members of the tribe Astereae, particularly goldenrods, American asters, and goldenasters, and he maintains the University of Waterloo Astereae Lab website. Semple's wife is Brenda, and in 2013, he named a newly discovered goldenrod species Solidago brendiae in honor of her.
Symphyotrichum racemosum is a species of flowering plant native to parts of the United States and introduced in Canada. It is known as smooth white oldfield aster and small white aster. It is a perennial, herbaceous plant in the family Asteraceae. It is a late-summer and fall blooming flower.
Symphyotrichum estesii is a species of flowering plant in the family Asteraceae, endemic to Coffee County, Tennessee. Commonly called May Prairie aster and Estes's aster, it is a perennial, herbaceous plant that may reach 30 to 85 centimeters in height. Its flowers have white ray florets and yellow disk florets. It is named in honor of botanist Dwayne Estes who discovered it in 2008.
Symphyotrichum rhiannon is a species of flowering plant endemic to a serpentine barren in western North Carolina. It has been given the vernacular Rhiannon's aster and is also known as Buck Creek aster. It is a perennial, herbaceous plant in the family Asteraceae.
Symphyotrichum undulatum is a species of flowering plant in the family Asteraceae native to eastern North America. Commonly known as wavyleaf aster, it is a perennial, herbaceous plant that flowers August through October and may reach heights between 30 and 160 centimeters.
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 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 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 burgessii is a species of flowering plant in the family Asteraceae native to Cuba. It is a perennial, herbaceous plant with a height of 5 decimeters or less. Its white ray florets are 5–8 millimeters in length.
Symphyotrichinae is a subtribe of plants in the family Asteraceae containing six genera primarily of North American origin. In addition to Symphyotrichum, the largest and the type genus, the genera are Almutaster, Ampelaster, Canadanthus, Psilactis, and Sanrobertia.
