Symphyotrichum retroflexum

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Symphyotrichum retroflexum
Symphyotrichum retroflexum specimen.jpg
Herbarium specimen

Apparently Secure (NatureServe)[1]
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Symphyotrichum
Subgenus: Symphyotrichum subg. Symphyotrichum
Section: Symphyotrichum sect. Symphyotrichum
Species:
S. retroflexum
Binomial name
Symphyotrichum retroflexum
Synonyms[2]

Symphyotrichum retroflexum (formerly Aster retroflexus) is a species of flowering plant in the family Asteraceae native to the southeastern United States. Commonly known as rigid whitetop aster, it is a perennial, herbaceous plant that may reach 40 to 100 centimeters (16 to 39 inches) tall. Its flowers have blue to purple ray florets and cream to pale yellow then pinkish disk florets. It is known only from the Blue Ridge Mountains in Alabama, Georgia, North Carolina, South Carolina, Tennessee, and Virginia, where it grows in wooded areas at elevations of 400–1,500 meters (1,300–4,900 feet).[3] As of July 2021, NatureServe classifies it as Apparently Secure (G4).[1] There is an introduced presence of S. retroflexum in southeast China.[2]

Citations[]

  1. ^ Jump up to: a b NatureServe 2021.
  2. ^ Jump up to: a b c POWO 2019.
  3. ^ Brouillet et al. 2006.

References[]

  • Brouillet, L.; Semple, J.C.; ; ; (2006). "Symphyotrichum retroflexum". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA). 20. New York and Oxford. Retrieved 8 July 2021 – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
  • NatureServe (2 July 2021). "Symphyotrichum retroflexum Rigid Whitetop American-aster". NatureServe Explorer (explorer.natureserve.org). Arlington, Virginia: NatureServe. Retrieved 8 July 2021.
  • POWO (2019). "Symphyotrichum retroflexum (Lindl.) G.L.Nesom". Plants of the World Online (www.plantsoftheworldonline.org). Royal Botanic Gardens, Kew. Retrieved 8 July 2021.



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