Answer: mullein

AnswerCrossword Clue
MULLEINPlant of the figwort family
mulleinany of several similar plants
mulleinany of various plants belonging to the genus Verbascum, of the figwort family, native to the Old World, esp. V. thapsus, a tall plant with woolly leaves and a dense spike of yellow flowers
mulleina Eurasian herb, also MULLEN