Garden Closed

The United States Botanic Garden (USBG) is temporarily closed to the public to reduce the risk of transmitting COVID-19 coronavirus.

Whenever possible, the USBG will reschedule public programs and events originally scheduled during the closure period. Please monitor the USBG website for updates to operating status. Many resources can still be accessed online, including educational worksheets and manuals, fact sheets and more, and some of our programs will also be made available online. Find online resources at www.USBG.gov/AtHome

Doll's daisy or Decurrent false aster

Doll's daisy or decurrent false aster (Boltonia decurrens)
Plant Botanical Name: 
Boltonia decurrens
Plant Threat Level: 
Endangered

Although historically widely distributed within the Illinois and Mississippi River floodplain, this species is now reduced to only 20 locations. Like many endangered plants, Boltonia decurrens is dependent upon specific environmental conditions. Believe it or not, this plant is successful with periodic disturbance from major floods. Floods open land to full sun and remove silt build-up. Today, the natural flood regime has been altered by dams and levees, and former habitat is now agricultural land. Human activities, such as regular cultivation and heavy herbicide use, are also threats to its survival.