Apios americana Medik.  
Family: Fabaceae
common groundnut, Indian-potato, potato-bean
[Apios americana f. pilosa Medik., Apios americana var. turrigera Medik., Apios tuberosa Moench, Glycine apios L.]
Apios americana image
Merel R. Black  
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
Apios americana image
Merel R. Black  
Apios americana image
Robert W. Freckmann  
Apios americana image
Merel R. Black  
Apios americana image
Merel R. Black  
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