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Apios americana Medik. - Groundnut.  Present in the Texas flora and known locally as: American potatobean  (Texas Distribution by vegetation zone). Images available from the Vascular Plant Image Gallery. Synonymy:   Apios americana var. turrigera Fern., Glycine apios L.

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Apios priceana B.L. Robins. - Traveler's-delight.  Listed by the U.S. FWS as threatened - the FWS local name is Price's potato-bean and the FWS range is: U.S.A. (AL, IL, KY, MS, TN). FWS Listing information: volume 55 Federal Register 433; January 5, 1990. This taxon listed by the Center For Plant Conservation. Synonymy:   Glycine priceana (B.L. Robins.) Britt.