Symphyotrichum chilense

Symphyotrichum chilense (formerly Aster chilensis) is a species of flowering plant in the family Asteraceae known by the common names Pacific aster and common California aster. It is native to the west coast of North America from British Columbia to Southern California and the Channel Islands. It grows in many habitats, especially along the coast and in the coastal mountain ranges. Despite its scientific name, it does not occur in Chile. Pacific aster blooms from June to October with violet ray florets surrounding yellow disk florets.

Symphyotrichum chilense
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. chilense
Binomial name
Symphyotrichum chilense (Nees) G.L.Nesom
Native distribution
Synonyms
Basionym Aster chilensis Nees Alphabetical list Aster chamissonis A.Gray Aster chilensis var. invenustus (Greene) Jeps. Aster chilensis var. medius Jeps. Aster chilensis var. sonomensis (Greene) Jeps. Aster chilensis subsp. typicus Cronquist Aster invenustus Greene Aster neesii Sch.Bip. Aster radula Less. Aster sonomensis Greene Aster spectabilis Hook. & Arn. Symphyotrichum chilense var. invenustum (Greene) G.L.Nesom Symphyotrichum chilense var. medium (Jeps.) G.L.Nesom

Description

Part of an inflorescence of S. chilense

Symphyotrichum chilense is a rhizomatous, perennial, herbaceous plant growing to heights between 40 and 120 centimeters (1+1⁄4 and 4 feet). The sparsely hairy leaves are narrowly oval-shaped, pointed, and sometimes finely serrated along the edges. The inflorescence holds flower heads that open June–October with centers of 35–60+ yellow disk florets surrounded by 15–40 narrow violet ray florets. The fruit is a seed, specifically a rounded, hairy cypsela with pappi.

Distribution and habitat

Pacific aster is native to west coast provinces and states of North America in British Columbia; California, including Southern California and the Channel Islands; Oregon; and, Washington. Despite its scientific name, it does not occur in Chile.

It can be found in coastal habitats including salt marshes, ocean dunes and banks, grasslands, and coniferous forests, at elevations of 0–500 meters (0–1,600 feet).

References

• Allen, G.A. (2012). "Symphyotrichum chilense". 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 chilense". 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 25 July 2021 – via eFloras.
• NatureServe (2 July 2021). "Symphyotrichum chilense Pacific American-aster". NatureServe Explorer (explorer.natureserve.org). Arlington, Virginia: NatureServe. Retrieved 10 July 2021.
• POWO (2021). "Symphyotrichum chilense (Nees) G.L.Nesom". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 25 July 2021.

External links

• Symphyotrichum chilense in the CalPhotos photo database, University of California, Berkeley