Strophostyles helvola (L.) Elliott
Family: Fabaceae
annual woolly bean,  more...
[Phaseolus helvulus L.,  more]
Strophostyles helvola image
Stephen L. Solheim  
Etymology: Strophostyles: from strophe for "a turning" and stylos for "a style"
Plants: twining, annual, up to 40" long, herbaceous vine
Leaves: mostly smooth, stalked, oval, 1/2"-3" long, 3-parted, some with side lobes
Flowers: pink to purple, 5-parted, 1/2" long; inflorescence a loose, long-stalked head of stalkless flowers
Fruits: 1 1/2"-3 1/2" long, rounded pod coiling when open; several woolly seeds
Habitat: dry; in sandy soil and cinders
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