aaron's rod meaning

Noun: Aaron's rod
1. Tall-stalked very woolly mullein with densely packed yellow flowers; ancient Greeks and Romans dipped the stalks in tallow for funeral torches
  - common mullein, great mullein, flannel mullein, woolly mullein, torch, Verbascum thapsus
Derived forms: Aaron's rods
Type of: flannel leaf, mullein, velvet plant
Encyclopedia: Aaron's rod
[Architecture]
An ornament or molding consisting of a straight rod from which pointed leaves or scroll work emerge on either side, at regular intervals.