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.

Silversword

Argyroxiphium sandwicense
Plant Botanical Name: 
Argyroxiphium sandwicense
USBG Plant Location: 
Conservatory
Conservatory Room Location: 
Hawaii
Plant Threat Level: 
Threatened

Argyroxiphium sandwicense is endemic to the islands of Maui and Hawaii. Subspecies macrocephalum occurs on Maui, and subspecies sandwicense on the island of Hawaii. There are a total of eight subpopulations, many of which are limited to very few remaining naturally occurring plants.