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.

Kauai delissea

Delissea rhytidosperma
Plant Botanical Name: 
Delissea rhytidosperma
USBG Plant Location: 
Conservatory
Conservatory Room Location: 
Hawaii
Plant Threat Level: 
Endangered

Delissea rhytidosperma is an endangered member of the Lobelia family found only on the island of Kauai. The lowland forest habitat where this species grows has been disturbed by overgrazing of domestic and wild animals, the encroachment of invasive nonnative plant species, and naturally occurring landslides. Currently, only 15 plants survive in two remaining wild populations. Measures are being taken to protect these remaining populations, including weed control, fire suppression and fencing to exclude animals and humans. Botanical gardens and seed banks are also working to conserve these plants and seeds.