Symphyotrichum hallii

Apparently Secure  (NatureServe)[1]
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Tribe: Astereae
Subtribe: Symphyotrichinae
Genus: Symphyotrichum
Subgenus: Symphyotrichum subg. Symphyotrichum
Section: Symphyotrichum sect. Occidentales
Species:
S. hallii
Binomial name
Symphyotrichum hallii
Symphyotrichum hallii native distribution: Oregon and Washington — Puget Sound region, Willamette Valley, outliers in Columbia Gorge and central Washington. County distribution: Oregon — Benton, Clackamas, Douglas, Hood River, Josephine, Lane, Linn, Marion, Multnomah, Polk, and Wasco; Washington — Clark, King, Okanogan, and Skagit.
Native distribution[3]
Synonyms[2]
  • Aster chilensis subsp. hallii (A.Gray) Cronquist
  • Aster hallii A.Gray

Symphyotrichum hallii (formerly Aster hallii) is a species of flowering plant in the family Asteraceae endemic to western Oregon and Washington states. Commonly known as Hall's aster, it is a perennial, herbaceous plant with a long rhizome that creates colonies of itself. It grows about 30–60 centimeters (1–2 feet) tall, and has white (sometimes pale violet) rays that open July–August.[4]

Most occurrences of the species have been found at elevations of 0–500 meters (0–1,640 feet) in open areas in the Puget Sound region and Willamette Valley, with outliers in Columbia Gorge and central Washington.[4] It is conservationally Imperiled (S2) in Washington state.[1]

Citations

  1. 1 2 NatureServe 2021.
  2. 1 2 POWO 2019.
  3. ↑ USDA, NRCS 2014.
  4. 1 2 Brouillet et al. 2006.

References

  • Brouillet, L.; Semple, J.C.; Allen, G.A.; Chambers, K.L.; Sundberg, S.D. (2006). "Symphyotrichum hallii". 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 3 July 2021 – via eFloras.
  • NatureServe (2 July 2021). "Symphyotrichum hallii Hall's Aster". explorer.natureserve.org. Arlington, Virginia. Retrieved 3 July 2021.
  • POWO (2019). "Symphyotrichum hallii (A.Gray) G.L.Nesom". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 3 July 2021.
  • USDA, NRCS (2014). "Symphyotrichum hallii". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 2 September 2021.


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