Symphyotrichum ascendens

Symphyotrichum ascendens
Symphyotrichum ascendes
Conservation status
Secure  (NatureServe)[1]
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Asterales
Family:	Asteraceae
Tribe:	Astereae
Subtribe:	Symphyotrichinae
Genus:	Symphyotrichum
Subgenus:	Symphyotrichum subg. Ascendentes
Species:	S. ascendens
Binomial name
Symphyotrichum ascendens (Lindl.) G.L.Nesom[2]
Native distribution by state and province[2]
Synonyms[2]
Basionym Aster ascendens Lindl. Alphabetical list Aster adscendens Lindl. ex DC. Aster armeriifolius Greene Aster ascendens var. armeriifolius A.Nelson Aster ascendens var. ciliatifolius ( A.Gray Aster ascendens var. denudatus (Nutt.) Torr. & A.Gray Aster chilensis subsp. adscendens (Lindl. ex DC.) Cronquist Aster chilensis var. euadscendens Cronquist Aster denudatus Nutt. Aster denudatus var. ciliatifolius Nutt. Aster griseus Greene Aster lonchophyllus Greene Aster macounii Rydb. Aster nuttallii Torr. & A.Gray Aster ramulosus Nutt. Aster subgriseus Rydb. Virgulaster ascendens (Lindl.) Semple

Symphyotrichum ascendens (formerly Aster ascendens) is a species of flowering plant in the family Asteraceae known by the common names western aster,^[3] long-leaved aster,^[4] and Rocky Mountain aster.^[5] Blooming July–September, it is native to western North America and can be found at elevations of 500–3,200 m (1,600–10,500 ft) in several habitats.

Description

Symphyotrichum ascendens is a

Chromosomes

Symphyotrichum ascendens has a

This species is

allopolyploid, derived from the hybridization of S. spathulatum (chromosome base number x = 8) with S. falcatum (x = 5),^[6] each from a different subgenus, Symphyotrichum and Virgulus, respectively.^[12] This produced a plant with a unique base number of x = 13,^[8] also written x₂ = 13 (8 + 5),^[9] and it warranted its own subgenus, Ascendentes, and its own species name. One other species is placed within subgenus Ascendentes: S. defoliatum.^[12]

Distribution and habitat

Western aster is native to western North America from

meadows.^[6]

Citations

1. ^ NatureServe 2021.
2. ^ ^{a b c d e} POWO 2021.
3. ^ USDA, NRCS 2014.
4. ^ BSBI 2007.
5. ^ ^{a b} Taylor 1992, p. 134.
6. ^ ^{a b c d} Brouillet et al. 2006.
7. ^ Allen 2012.
8. ^ ^{a b c} Semple 2021.
9. ^ ^{a b} Semple n.d.a.
10. ^ Native Plant Trust 2021.
11. ^ IPNI 2021.
12. ^ ^{a b} Semple n.d.b.

References

• Allen, G.A. (2012). "Symphyotrichum ascendens". In Jepson Flora Project (ed.). Jepson eFlora. The Jepson Herbarium, University of California, Berkeley. Retrieved 25 July 2021.
• Brouillet, L.; Semple, J.C.; Allen, G.A.; Chambers, K.L.; Sundberg, S.D. (2006). "Symphyotrichum ascendens". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA). Vol. 20. New York and Oxford: Oxford University Press. Retrieved 22 July 2021 – via eFloras.
• BSBI List 2007 (xls). Botanical Society of Britain and Ireland. Archived from the original (xls) on 26 June 2015. Retrieved 17 October 2014.
• "Aster ascendens Lindl., Fl. Bor.-Amer. (Hooker) 2(7): 8 (1834)". International Plant Names Index (IPNI). Royal Botanic Gardens, Kew; Harvard University Herbaria & Libraries; Australian National Botanic Gardens. Retrieved 25 July 2021.
• Native Plant Trust (2021). "Symphyotrichum (American-aster): Go Botany". Go Botany (GoBotany.NativePlantTrust.org). Framingham, Massachusetts: Native Plant Trust. Archived from the original on 28 November 2020. Retrieved 24 July 2021.
• Arlington, Virginia
  : NatureServe. Retrieved 17 July 2021.
• POWO (2021). "Symphyotrichum ascendens (Lindl.) G.L.Nesom". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 22 July 2021.
• Semple, J.C. (n.d.a). "Symphyotrichum ascendens x". www.uwaterloo.ca. Ontario. Archived from the original on 22 July 2021. Retrieved 22 July 2021.
• Semple, J.C. (n.d.b). "Symphyotrichum subg. Ascendentes". www.uwaterloo.ca. Ontario. Archived from the original on 22 July 2021. Retrieved 22 July 2021.
• Semple, J.C. (14 May 2021). "Symphyotrichum ascendens — Long-leaved Aster, Intermountain Aster, Western Aster". www.uwaterloo.ca. Ontario. Archived from the original on 22 July 2021. Retrieved 22 July 2021.
• Taylor, Ronald J. (1992). Sagebrush Country: A Wildflower Sanctuary. Missoula, Montana: Mountain Press Publishing Company.
  OCLC 1036858077
  . Retrieved 20 January 2022.
• USDA, NRCS (2014). "Symphyotrichum ascendens". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 22 July 2021.

External links

• Symphyotrichum ascendens in the CalPhotos photo database, University of California, Berkeley
• BONAP distribution map, Biota of North America Program, 2014