Aaron's rod

(in the Bible) a rod, inscribed with the name of Aaron, that miraculously blossomed and yielded almonds: previously, the rod had changed into a serpent.

any of various plants having a tall, flowering stem, as the goldenrod or mullein.

a smooth-stemmed herb, Thermopsis villosa (or T. caroliniana ), of the legume family, found from North Carolina to Georgia, having yellow flowers in stiffly erect clusters and hoary pods.

Architecture. a convex molding having regularly spaced representations of leaves or scrollwork.