Robert W. Freckmann Herbarium


Because of technology changes and personnel changes at UWSP and the Wisconsin State Herbarium, the database of plant species housed at this site was merged with the database from the OLD WisFlora website to create a new Flora of Wisconsin website at Currently we are encouraging all Wisplant viewers to begin using the Flora of Wisconsin website as soon as possible. Wisplants will remain operational through July 13th. After that date, all traffic to Wisplants will be redirected to the Flora of Wisconsin website.

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Thank you.

  Apios americana Medik. image
Photographer: Robert W. Freckmann           

Botanical Illustration

Derek Anderson

Kitty Kohout

Merel R. Black

Merel R. Black

Merel R. Black

Merel R. Black

Christopher Noll
Family Fabaceae
Apios americana Medik.
common groundnut, Indian-potato, potato-bean
Apios: Greek for "pear" referring to shape of tubers
americana: for America
County distribution map- click for detailed distribution maps.
Detailed Distribution:
Town Range Maps
Google Dot Maps
Status: Native - potentially invasive
Plant: twining, annual/perennial, up to 7' long, herbaceous vine; slender rhizomes with 2 or more elongated tubers
Flower: 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.
Fruit:linear pod coiling after opening, several seeds
Leaf:pinnately-divided into an odd number (usually 5-7) of leaflets
Habitat: wet to moist; woods, streambanks

More Information Natural Communities Herbarium Specimens
All Apios list Ethnobotany Information Google- Images or Text
Apios americana Medik. f. pilosa Steyerm.
Apios americana Medik. var. turrigera Fernald
Apios tuberosa Moench
Glycine apios L.

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