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 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

Karoo cycad

Plant Botanical Name: 
Encephalartos lehmannii
Plant Threat Level: 

The Karoo cycad is endemic to the Eastern Cape of South Africa. Cycads are the oldest seed producing plants and according to fossil records predate dinosaurs. The few emaining wild populations of Encephalartos lehmannii are threatened by habitat destruction and unsustainable collection of plants for both horticultural and traditional medicinal uses. Conservation of plant material in botanical gardens and seed banks, controlling trade in cycads and protection of wild populations and habitat are being undertaken worldwide.

Photo: Rhoda McMaster