mullein

noun

1. (uncountable, usually)Any of a few hundred species of European and Asian plants, of the genus Verbascum, especially that majority that have yellow flowers.

   “There be foure ſortes of Mulleyne, as [Pedanius] Dioſcorides writeth: wherof yͤ two firſt are white Mulleyne, and of them one is Male, and the other female: The third is blacke Mulleyne: The fourth is wilde Mulleyne. […] The white male Mulleyn (or rather Wolleyn) hath […] the whole top with his pleaſant yellow floures ſheweth like to a waxe Candell or taper cunningly wrought.”

   “As we all know, witches ride through the air on a broom, but sometimes their means of locomotion was a bulrush, a branch of thorn, mullein stalks, cornstalk, or ragweed, called fairies' horse in Ireland.”