any of various European herbaceous plants of the scrophulariaceous genus Verbascum, such as V. thapsus (common mullein or Aaron's rod), typically having tall spikes of yellow flowers and broad hairy leaves
See also Aaron's rod
Word origin
C15: from Old French moleine, probably from Old French mol soft, from Latin mollis
Examples of 'verbascum' in a sentence
verbascum
Think sedum, lavender, lychnis, verbascum, acanthus and hollyhocks, to name but a few.
Times, Sunday Times (2017)
Verbascum olympicum is grander and branched, but perhaps too grand for this border.
Times, Sunday Times (2006)
He bends to show the leaf of a verbascum.
Times, Sunday Times (2012)
Now, two years later, because of tissue culture, gardeners can buy young potted plants of the first blue verbascum.