title: Symphyotrichum chapmanii
text: # 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. 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. It may be extirpated in Alabama.
  
  ## 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.
  
  * Flower head from bottom
  * Bracts, involucre, and phyllaries
  * Phyllary detail
  * Flower head from top
  
  ## Citations
  
  * 1 2 NatureServe 2021.
  * 1 2 POWO 2019.
  * ↑ USDA 2014.
  * ↑ Semple 2014.
  * 1 2 Brouillet et al. 2006.
  