Garden Closed

Due to the closure of the U.S. Capitol Campus to the public, the U.S. Botanic Garden continues to have altered operations.  Bartholdi Fountain and Gardens and the Terrace Gardens are open while the Conservatory and gated outdoor gardens are temporarily closed. Please monitor www.USBG.gov for updates on operating status. Many resources can be accessed online, including educational materials, virtual tours, and online programs. Connect with resources from home 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.