Etymology: Apios: Greek for "pear" referring to shape of tubers
Plants: twining, annual/perennial, up to 7' long, herbaceous vine; slender rhizomes with 2 or more elongated tubers
Leaves: pinnately-divided into an odd number (usually 5-7) of leaflets
Flowers: pink to brown, 5-parted, 1/2" long, either solitary or in pairs; inflorescence a dense, conical cluster (raceme) of stalked flowers; blooms July-Aug.
Fruits: linear pod coiling after opening, several seeds
Habitat: wet to moist; woods, streambanks
Floristic Rating: Coefficient of Conservatism = 5, Wetland Indicator = FACW WIS DNR-Bureau of Endangered Resources: Detailed information on Wisconsin invasive species including decription, habitats, control methods USDA Plants Database: Federal Distribution and detailed information including photos USDA Agricultural Research Service (ARS): Images of seeds, fruits, embryos, etc.