Definition of Metcalfe bean
1 : a prostrate perennial bean (Phaseolus metcalfei) of the southwestern U.S. and adjacent Mexico that is sometimes cultivated for forage
2 : the flat circular brownish black seed of the Metcalfe bean
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Origin and Etymology of metcalfe bean
after J. K. Metcalfe who introduced it to the southwestern U.S. in the late 19th century
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