Symphyotrichum parviceps

Symphyotrichum parviceps (formerly Aster parviceps) is a species of flowering plant in the family Asteraceae. It is native to the central United States, and it has the common names of smallhead aster and small white aster. A usually short-lived herbaceous perennial plant, it may reach 30 to 100 centimeters (1 to 3+1⁄4 feet) in height. Its flowers have white ray florets and pale yellow disk florets that turn purplish.

Symphyotrichum parviceps
S. parviceps, St. Charles County, Missouri
Conservation status
Apparently 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. Symphyotrichum
Species:	S. parviceps
Binomial name
Symphyotrichum parviceps (E.S.Burgess) G.L.Nesom
Native distribution
Synonyms
Aster depauperatus var. parviceps Fernald Aster ericoides var. parviceps E.S.Burgess Aster parviceps Mack. & Bush Aster pilosus subsp. parviceps (E.S.Burgess) A.G.Jones

Description

A usually short-lived herbaceous perennial plant, Symphyotrichum parviceps may reach 30 to 100 centimeters (1 to 3+1⁄4 feet) in height. Its flowers have white ray florets and pale yellow disk florets that turn purplish.

Distribution and habitat

S. parviceps is native to Arkansas, Illinois, Iowa, Kansas, Missouri, and Oklahoma in the United States. It is found at elevations between 200 and 400 meters (700 and 1,300 feet) in open, dry areas with sandy and loamy soils. It has been introduced to the Transcaucasus.

Botanical illustration of Aster parviceps from Britton and Brown (1913) An Illustrated Flora of the Northern United States, Canada and the British Possessions

Herbarium specimen of Aster parviceps collected 18 September 1914 by John Davis at Hannibal, Missouri. It is stored at the New York Botanical Garden Steere Herbarium.

Conservation

As of February 2023, NatureServe listed S. parviceps as Apparently Secure (G4) globally and Vulnerable (S3) in Illinois and Missouri. The species' global status was last reviewed on 29 April 1997.

References

• Brouillet, L.; Semple, J.C.; Allen, G.A.; Chambers, K.L.; Sundberg, S.D. (2006). "Symphyotrichum parviceps". 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 12 July 2021 – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
• NatureServe (3 February 2023). "Symphyotrichum parviceps Small-head aster". explorer.natureserve.org. Arlington, Virginia. Retrieved 5 February 2023.
• POWO (2023). "Symphyotrichum parviceps (E.S.Burgess) G.L.Nesom". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 5 February 2023.