Aaron's rod
noun
1
: any of several plants with tall flowering stems
especially : great mullein
2
: an architectural ornament consisting of a rounded molding decorated by a single entwined serpent and sometimes vines and leaves
Word History
Etymology
so called from the reference (Numbers 17:8) to the patriarch Aaron's rod, which blossomed and yielded almonds
First Known Use
1812, in the meaning defined above