The Collaborative International Dictionary of English v.0.48:

Sassy bark \Sas"sy bark`\ (Bot.)
   The bark of a West African leguminous tree (Erythrophlaeum
   Guineense, used by the natives as an ordeal poison, and also
   medicinally; -- called also mancona bark.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Mancona bark \Man*co"na bark`\
   See Sassy bark.
   [1913 Webster]