Symphyotrichum robynsianum

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Symphyotrichum robynsianum
Symphyotrichum robynsianum 51026776.jpg

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. robynsianum
Binomial name
Symphyotrichum robynsianum
() Brouillet &
Symphyotrichum robynsianum native distribution map: Canada — Manitoba, Ontario, and Québec; US — Michigan, Minnesota, and Wisconsin.
Native distribution[2]
Synonyms[2]
  • Aster robynsianum J.Rousseau

Symphyotrichum robynsianum (formerly Aster robynsianum) is a species of flowering plant in the family Asteraceae native to northeastern North America. Common names include Robyn's aster[3] and long-leaved aster.[4]

Description[]

S. robynsianum is a perennial, herbaceous species with long rhizomes and erect stems 10–80 centimetres (4–31 inches) high. The stiff narrow leaves are slightly toothed or entire. Flowers may be produced from August to September. The flower heads are located singly or in groups of up to three on leafy branches. The ray florets are dark blue-violet and the disc florets are yellow.[3]

S. robynsianum flowers

Taxonomy[]

Symphyotrichum robynsianum was formerly included in the large genus Aster as Aster robynsianum. However, this broad circumscription of Aster is polyphyletic and the North American asters are now mostly classified in Symphyotrichum and several other genera.[5] No subspecies or varieties have been recognized within Symphyotrichum robynsianum.

This species has often gone by the name Aster longifolius, but the type specimen for that name is a specimen of Symphyotrichum novi-belgii, and as such that name cannot be used for the plants now called S. robynsianum. In 1957, Jacques Rousseau, a Quebecois ethnobotanist, described Aster robynsianum based on a specimen from central Quebec, naming it after Walter Robyns, a director of the National Botanic Garden of Belgium.[6][7] The name Symphyotrichum robynsianum was first used in 1997 by Luc Brouillet and Jacques Labrecque.[7]

Symphyotrichum robynsianum may have originated as hybrid between two other aster species, but its origin is not well understood.[7]

Distribution and habitat[]

Symphyotrichum robynsianum is native to Manitoba, Ontario, Quebec, Michigan, Minnesota and Wisconsin. It is typical of moist, open, sandy, gravelly or rocky habitats such as river and lake shores, and alvars.[3] It is usually associated with calcareous habitats.[7]

S. robynsianum gone to seed

Citations[]

  1. ^ NatureServe 2021.
  2. ^ Jump up to: a b POWO 2019.
  3. ^ Jump up to: a b c Brouillet et al. 2006.
  4. ^ Reznicek, Voss & Walters 2011.
  5. ^ Semple 2021.
  6. ^ Jardin Botanique 2014.
  7. ^ Jump up to: a b c d Brouillet & Labrecque 1997.

References[]

  • Brouillet, L.; (1997). "New combinations in Symphyotrichum (syn. Aster, Asteraceae: Astereae) species from northeastern North America". Phytologia. 82 (3): 137–141. doi:10.5962/bhl.part.28862.
  • Brouillet, L.; Semple, J.C.; ; ; (2006). "Symphyotrichum robynsianum". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA). 20. New York and Oxford – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
  • Jardin Botanique (18 June 2014). "Biography of Jacques Rousseau". Collections and Archives of the Library - Montreal Botanical Garden. Jardin Botanique de Montreal. Retrieved 3 February 2020.
  • NatureServe (2 July 2021). "Symphyotrichum robynsianum Robyns' American-aster". NatureServe Explorer (explorer.natureserve.org). Arlington, Virginia: NatureServe. Retrieved 6 July 2021.
  • POWO (2019). "Symphyotrichum robynsianum (J.Rousseau) Brouillet & Labrecque". Plants of the World Online (www.plantsoftheworldonline.org). Royal Botanic Gardens, Kew. Retrieved 6 July 2021.
  • Reznicek, A. A.; Voss, E. G.; Walters, B. S., eds. (February 2011). "Symphyotrichum robynsianum". Michigan Flora Online. University of Michigan Herbarium. Retrieved 2 February 2020.
  • Semple, J.C. (27 April 2021). "An overview of "asters" and the Tribe Astereae". University of Waterloo (UWaterloo.ca). Waterloo, Ontario: University of Waterloo. Archived from the original on 26 May 2021. Retrieved 6 July 2021.
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