- Dioscorea bulbifera is an herbaceous, twining vine that can grow to lengths exceeding 60 ft. (18 m). It invades open areas in the sub-tropical southeastern United States.
- The leaves are alternate, 8 in. (20.3 cm) long, broadly-heart shaped with prominent veins that resemble greenbrier leaves. The rounded stems are thin and wiry.
- The vine rarely flowers.
- The chief means of reproduction are aerial, potato-like tubers (bulbils) located at the leaf axils.
- Ecological Threat
- Dioscorea bulbifera can form dense masses of vines that cover and kill native vegetation including trees within a variety of habitats such as forest edges, hammocks, and many disturbed areas. It was introduced from Africa for food and medicinal purposes in the early 1900s. It is a common and widespread food crop throughout most tropical regions of the world.
Global Invasive Species Database. 2011. Invasive Species Specialist Group (ISSG) of the IUCN Species Survival Commission 
University of Florida, IFAS Extension, Center for Aquatic and Invasive Plants 
USDA National Invasive Species Information Center 
National Tropical Botanical Garden 
Florida Exotic Pest Plant Council 
USDA NRCS PLANTS 
USDA ARS GRIN 
Images from Bugwood.org