(from the article `mullein`) any of the 360 species of the genus Verbascum (family Scrophulariaceae), large biennial or perennial herbs native to northern temperate regions, ...
[n] - tall-stalked very woolly mullein with densely packed yellow flowers
great mullein noun tall-stalked very woolly mullein with densely packed yellow flowers; ancient Greeks and Romans dipped the stalks in tallow for funeral torches