Jump to: Common NamesEconomic ImportanceDistributional RangeReferencesOther Web References

Taxon: Symphyotrichum pilosum (Willd.) G. L. Nesom

Genus: Symphyotrichum
Family: Asteraceae (alt.Compositae)
Subfamily: Asteroideae
Tribe: Astereae
Nomen number: 434279
Place of publication: Phytologia 77:289. 1995 ("1994")
Link to protologue:
Name Verified on: 22-Mar-2012 by ARS Systematic Botanists.
Accessions: 0 (0 active, 0 available) in National Plant Germplasm System

Common names:

  • awl aster  (Source: Glea Cron ed2) - English
  • frost aster  (Source: F Carolin) - English
  • frost-weed aster  (Source: Asters Gard Guide) - English
  • hairy aster  (Source: Aster OK) - English
  • heath aster  (Source: Aster Ontario) - English
  • Michaelmas daisy  (Source: F WVa) - English
  • nailrod  (Source: F WVa) - English
  • old-field aster  (Source: Aster Ontario) - English
  • Pringle's aster  (Source: Aster Ontario) - English
  • steelweed  (Source: F WVa) - English
  • white heath aster  (Source: F WVa) - English
  • white old-field aster  (Source: F Florida) - English
  • aster poilu  (Source: F NAmer) - French
  • weichhaarige Aster  (Source: Zander Ency) - German

Economic Importance:

  • Environmental: ornamental (as A. pilosus & A. pringlei)
  • Weed:

Distributional Range:


    Northern America
    • EASTERN CANADA: Canada [Québec (s.w.), Ontario]
    • NORTHEASTERN U.S.A.: United States [Connecticut, Indiana, Maine, Massachusetts, Michigan, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia]
    • NORTH-CENTRAL U.S.A.: United States [Illinois, Iowa, Kansas, Minnesota (s.e.), Missouri, Nebraska, Oklahoma, South Dakota, Wisconsin]
    • SOUTHEASTERN U.S.A.: United States [Alabama, Arkansas, Delaware, Florida (n.w.), Georgia, Kentucky, Maryland, Mississippi, North Carolina, South Carolina, Tennessee, Virginia, District of Columbia]

    Cultivated (also cult.)


    • MIDDLE EUROPE: Belgium, Germany


    • NORTHERN EUROPE: United Kingdom
    • MIDDLE EUROPE: Netherlands
    • SOUTHWESTERN EUROPE: France, Spain

    Northern America
    • EASTERN CANADA: Canada [Nova Scotia, New Brunswick]
    • WESTERN CANADA: Canada [British Columbia]


  1. Chmielewski, J. G. & J. C. Semple. 2001. The biology of Canadian weeds. 114. Symphyotrichum pilosum (Willd.) Nesom (Aster pilosus Willd.). Canad. J. Pl. Sci. 81:851-865.
  2. Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource).
  3. FNA Editorial Committee. 1993-. Flora of North America.
  4. Gleason, H. A. & A. Cronquist. 1991. Manual of vascular plants of northeastern United States and adjacent Canada, ed. 2 Note: = Aster pilosus
  5. Jones, A. G. 1992. Aster & Brachyactis (Asteraceae) in Oklahoma. Note: = Aster pilosus
  6. Nesom, G. L. 1994. Review of the taxonomy of Aster sensu lato (Asteraceae: Astereae), emphasizing the New World species. Phytologia 77:289.
  7. Picton, P. 1999. The gardener's guide to growing Asters. Note: = Aster pilosus
  8. Radford, A. E. et al. 1964. Manual of the vascular flora of the Carolinas. Note: = Aster pilosus
  9. Semple, J. C. et al. 1996. The Asters of Ontario (Compositae: Astereae): Diplactis Raf., Oclemena E. L. Greene, Doellingeria Nees and Aster. Note: = Aster pilosus Willd.
  10. Strausbaugh, T. D. & E. L. Core. 1978. Flora of West Virginia, ed. 2. Note: = Aster pilosus
  11. Wunderlin, R. P. 1998. Guide to the vascular plants of Florida Note: = Aster pilosus

Check other web resources for Symphyotrichum pilosum (Willd.) G. L. Nesom :

Cite as: USDA, Agricultural Research Service, National Plant Germplasm System. 2019. Germplasm Resources Information Network (GRIN-Taxonomy).
National Germplasm Resources Laboratory, Beltsville, Maryland. URL: https://npgsweb.ars-grin.gov/gringlobal/taxonomydetail.aspx?id=434279. Accessed 22 November 2019.