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

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