Biology:Symphyotrichum eatonii

Short description: Species of flowering plant in the family Asteraceae native to western and central North America

Symphyotrichum eatonii
Conservation status
Secure (NatureServe)
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. Symphyotrichum
Section:	Symphyotrichum sect. Occidentales
Species:	S. eatonii
Binomial name
Symphyotrichum eatonii (A.Gray) G.L.Nesom
Native distribution
Synonyms
Aster bracteolatus Nutt. Aster cordalenus L.F.Hend. Aster eatonii (A.Gray) Howell Aster foliaceus var. eatonii A.Gray Aster mearnsii Rydb. Symphyotrichum bracteolatum (Nutt.) G.L.Nesom

Symphyotrichum eatonii (formerly Aster eatonii) is a species of aster known by the common name Eaton's aster. It is native to much of western North America from British Columbia to Saskatchewan, the Sierra Nevada in California , the Rocky Mountains region, to Arizona and New Mexico, where it grows in many habitats, especially wet areas such as meadows and near ditches.

Description

Symphyotrichum eatonii is a perennial herb growing 40–100 centimeters (1 foot 4 inches–3 feet 3 inches) from a short rhizome. The thin leaves are up to 20 centimeters (8 inches) long, lance-shaped, and pointed at the tips. Some of the leaves and the upper parts of the stem are hairy.

The inflorescence holds several flower heads containing many white to pink ray florets around a center of yellow disk florets. The fruit is a hairy cypsela that resembles an achene.

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Taxonomy

Symphyotrichum eatonii is classified in the subgenus Symphyotrichum, section Occidentales. (As of June 2021) Catalogue of Life, Flora of North America, and Jepson eFlora accepted this species as Symphyotrichum bracteolatum, while POWO, NatureServe, and Canadian botanist John C. Semple circumscribed to S. eatonii.

References

• Template:Cite Jepson eFlora
• "Symphyotrichum bracteolatum". Point Arena, California: Flora of North America Association. 6 November 2020. http://floranorthamerica.org/Symphyotrichum_bracteolatum. 
• Hassler, M. (17 March 2021). "Symphyotrichum bracteolatum (Nutt.) G. L. Nesom – World Plants: Synonymic Checklists of the Vascular Plants of the World". in Roskov, Y.; Ower, G.; Orrell, T. et al. (in en). Species 2000 & ITIS Catalogue of Life, 10 June 2021. Leiden, Netherlands: Naturalis Biodiversity Center. https://www.catalogueoflife.org/data/taxon/7NMHT. Retrieved 21 June 2021. 
• "Symphyotrichum eatonii - Eaton's Aster". Arlington, Virginia: NatureServe. 4 June 2021. https://explorer.natureserve.org/Taxon/ELEMENT_GLOBAL.2.139599/Symphyotrichum_eatonii. 
• POWO (2021). "Symphyotrichum bracteolatum (Nutt.) G.L.Nesom" (in en). Royal Botanic Gardens, Kew. http://www.plantsoftheworldonline.org/taxon/1001047-1. 
• "Symphyotrichum eatonii". Ontario: University of Waterloo. 17 May 2021. https://uwaterloo.ca/astereae-lab/research/asters/symphyotrichum/symphyotrichum-subsect-occidentales/symphyotrichum-eatonii. 
• "Symphyotrichum eatonii". Natural Resources Conservation Service PLANTS Database. USDA. 2015. https://plants.usda.gov/core/profile?symbol=SYEA2. 

External links

Wikidata ☰ {{{from}}} entry