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Symphyotrichum novae-angliae (formerly Aster novae-angliae) is a species of flowering plant in the aster family native to central and eastern North America. Commonly known as New England aster, [4] hairy Michaelmas-daisy, [5] or Michaelmas daisy, [6] it is a perennial, herbaceous plant usually between 30 and 120 centimeters (1 and 4 feet) tall and 60 to 90 cm (2 to 3 ft) wide.
About fifty Symphyotrichum novae-angliae cultivars were in commerce as of 2019. [1] With few exceptions, these New England aster cultivars grow to between 90 and 180 centimetres (3 and 6 feet) in height and flower September–October.
The flower heads have white, pink, purple, or blue ray florets surrounding white to yellow disk florets. The disk floret corollas become pink, purple, or brown after pollination. The three species in section Conyzopsis have reduced or absent ray florets. Symphyotrichum is the type genus of subtribe Symphyotrichinae.
Symphyotrichum (/ ˌ s ɪ m f aɪ ə ˈ t r ɪ k əm /) 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.
Symphyotrichum ericoides (formerly Aster ericoides), with common names white heath aster, [4] frost aster, [5] and heath aster, [6] is a species of flowering plant in the family Asteraceae native to much of central and eastern North America. It has been introduced to parts of Europe and western Asia.
Symphyotrichum novi-belgii (formerly Aster novi-belgii), commonly called New York aster, [3] is a species of flowering plant. It is the type species for Symphyotrichum , a genus in the family Asteraceae , whose species were once considered to be part of the genus Aster .
Symphyotrichum undulatum (formerly Aster undulatus) is a species of flowering plant in the family Asteraceae native to eastern North America. Its common name is wavyleaf aster , [ 3 ] and it is a perennial , herbaceous plant that flowers August through October and may reach heights between 30 and 160 centimeters (1 and 5 feet).
Symphyotrichum oolentangiense var. poaceum (E.S.Burgess) G.L.Nesom Symphyotrichum oolentangiense (formerly Aster oolentangiensis and Aster azureus ), commonly known as skyblue aster [ 4 ] and azure aster , [ 3 ] is a species of flowering plant in the family Asteraceae native to eastern North America .