/wee sah"chee/ , n.
a tropical and subtropical New World shrub, Acacia farnesiana, of the legume family, having clusters of fragrant, deep-yellow flower heads. Also called cassie, popinac, sponge tree .
[ 1830-40, Amer.; huixachi, equiv. to hui ( tztli ) thorn + ( i ) xachi a large amount, many ]