Symphyotrichum puniceum

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Purplestem aster
Aspu5 002 shp.jpg
Purplestem aster, Symphyotrichum puniceum puniceum
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Asterales
Family: Asteraceae
Tribe: Astereae
Genus: Symphyotrichum
Subgenus: Symphyotrichum
Section: Symphyotrichum
Species: S. puniceum
Binomial name
Symphyotrichum puniceum
(L.) Á. & D. Löve

Symphyotrichum puniceum (formerly Aster puniceus), commonly known as purplestem aster,[1] red-stalk aster,[2] red-stemmed aster or swamp aster, is an herbaceous perennial native to eastern North America. It also has several names that are now obsolete,[clarification needed] such as early purple aster and meadow scabish.

It is one of the widest ranging plants of the genus, being present from the edges of the Great Plains to the Atlantic coast and from the Gulf coast of Texas north to southern Ungava Bay in the north of Quebec.


It is a variable species and many forms have been described, but they are generally no longer recognised. Two varieties are accepted, however. The flowers emerge in August through October to show dark blue to rarely white ray florets and yellow to cream-coloured disc florets that become pink or purple with maturity.[3]


  1. ^ "Symphyotrichum puniceum". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 7 December 2015. 
  2. ^ "BSBI List 2007". Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-02-25. Retrieved 2014-10-17. 
  3. ^ Brouillet, Luc; Semple, John C.; Allen, Geraldine A.; Chambers, Kenton L.; Sundberg, Scott D. (2006). "Symphyotrichum puniceum". In Flora of North America Editorial Committee, eds. 1993+. Flora of North America. 20. New York & Oxford: Oxford University Press. p. 524. 

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