Symphyotrichum dumosum

Symphyotrichum dumosum (formerly Aster dumosus) is a species of flowering plant in the aster family. It is native to a widespread area across the eastern half of the United States from Texas to Florida to Maine to Wisconsin. It is also native to Ontario, introduced in New Brunswick, and cultivated in other places.[2] It is commonly known as rice button aster[3] and bushy aster.[4]

Bushy aster, Rice button aster

Secure  (NatureServe)
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Tribe: Astereae
Genus: Symphyotrichum
Species:
S. dumosum
Binomial name
Symphyotrichum dumosum
Synonyms[1]

Listed alphabetically

Name

Symphyotrichum dumosum is known as bushy aster, rice button aster, rice-button aster, long-stalk aster; aster nain d'automne and aster touffu in French; and, Kissen-Aster, Kissen-Herbstaster, and buschige Aster in German.[5]

Description

This herbaceous perennial grows up to 100 cm (40 in) tall. The flower heads are born in paniculiform arrays. The ray florets are blue, pink, purple or white, while the disc florets are pale yellow, turning pink with age.[6]

Taxonomy

This species was long known as Aster dumosus before it was moved into its current genus due to a phylogenetic analysis. The genus Aster has been narrowed considerably in scope in recent years, due to new information about the relationships of the species in the group.

The following varieties are recognized by some sources:[2][7]

  • Symphyotrichum dumosum var. dumosum
  • Symphyotrichum dumosum var. gracilipes (Wiegand) G.L.Nesom
  • Symphyotrichum dumosum var. pergracile (Wiegand) G.L.Nesom
  • Symphyotrichum dumosum var. strictior (Torr. & A.Gray) G.L.Nesom
  • Symphyotrichum dumosum var. subulifolium (Torr. & A.Gray) G.L.Nesom
  • Detail of flowering head
  • Involucre, phyllaries, and bracts
  • Stem and flower head
  • Honey Bee on flower head

References
  1. POWO (2019). "Symphyotrichum dumosum (L.) G.L.Nesom". Plants of the World Online (powo.science.kew.org). Royal Botanic Gardens, Kew. Retrieved 24 November 2020.
  2. Brouillet, Luc; Semple, John C.; Allen, Geraldine A.; Chambers, Kenton L.; Sundberg, Scott D. (2006). "Symphyotrichum dumosum". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA). 20. New York and Oxford. Retrieved 24 November 2020 – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
  3. "Symphyotrichum dumosum". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 6 December 2015.
  4. "BSBI List 2007". Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-01-25. Retrieved 2014-10-17.
  5. GBIF Secretariat (2019). "Symphyotrichum dumosum (L.) G.L.Nesom". gbif.org. GBIF Secretariat. Retrieved 24 November 2020.
  6. G. L. Nesom, Phytologia. 77: 280. 1995.
  7. "Symphyotrichum dumosum". The Global Compositae Checklist (GCC). Retrieved 24 November 2020 – via The Plant List.
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