a weedy, European mullein, Verbascum blattaria, of the figwort family, having lance-shaped leaves and loose spikes of white or yellow flowers.
Origin of moth mullein
First recorded in 1570–80; from its mothlike appearance
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for moth mullein
Historical Examples of moth mullein
The moth-mullein is so called because its blossoms have the appearance of a number of delicate moths resting upon the stem.The Wild Flowers of California: Their Names, Haunts, and Habits
Mary Elizabeth Parsons