Symphyotrichum chapmanii

Symphyotrichum chapmanii (formerly Aster chapmanii and Eurybia chapmanii) is a species of flowering plant in the family Asteraceae native to the Apalachicola River drainage basin of Alabama and Florida.[4] Commonly known as savanna aster, it is a perennial, herbaceous plant that may reach 30 to 80 centimeters (1 to 2+1⁄2 feet) tall. Its flowers have purple to blue-lavender ray florets and pale yellow disk florets. It is a wetland species and is of conservation concern.[5] It may be extirpated in Alabama.[1]

Symphyotrichum chapmanii
Symphyotrichum chapmanii, Apalachicola National Forest, Florida

Imperiled  (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. Chapmaniana
Species:
S. chapmanii
Binomial name
Symphyotrichum chapmanii
Map of Alabama and Florida with counties of distribution of Symphyotrichum chapmanii shaded in green: Alabama counties — Geneva and Houston; Florida counties — Alachua, Bay, Calhoun, Franklin, Gulf, Jackson, Liberty, Okaloosa, Santa Rosa, St. Lucie, Wakulla, Walton, and Washington
Native distribution[3]
Synonyms[2]
  • Aster chapmanii Torr. & A.Gray
  • Eurybia chapmanii (Torr. & A.Gray) G.L.Nesom
  • Heleastrum chapmanii (Torr. & A.Gray) Shinners

Description

Savanna aster is a perennial, herbaceous plant that grows from a cespitose root system with rhizomes. It typically reaches heights 30–80 cm (12–31 in) on one to three hairless stems. It has cylinder-bell shaped involucres with green, purple-tipped phyllaries in 4–6 rows on its involucres. It blooms September–December with flower heads that have 8–23 purple to pale bluish-purple ray florets 10–20 mm (0.4–0.8 in) long surrounding 47–57 pale yellow disk florets.[5]

Citations
  1. NatureServe 2021.
  2. POWO 2019.
  3. USDA 2014.
  4. Semple 2014.
  5. Brouillet et al. 2006.

References
  • Brouillet, L.; Semple, J.C.; Allen, G.A.; Chambers, K.L.; Sundberg, S.D. (2006). "Symphyotrichum chapmanii". 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 14 July 2021 – via eFloras.
  • NatureServe (2 July 2021). "Eurybia chapmanii Chapman's Aster". explorer.natureserve.org. Arlington, Virginia. Retrieved 14 July 2021.
  • USDA, NRCS (2014). "Eurybia chapmanii". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 29 August 2021.
  • POWO (2019). "Symphyotrichum chapmanii (Torr. & A.Gray) Semple & Brouillet". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 14 July 2021.
  • Semple, J.C. (28 January 2014). "Symphyotrichum subg. Chapmaniani Chapman's Aster". www.uwaterloo.ca. Ontario. Archived from the original on 15 January 2021. Retrieved 7 August 2021.


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