Word Study
ribwort
CIDE DICTIONARY
ribwort, n.
A species of plantain (Plantago lanceolata ) with long, narrow, ribbed leaves; -- called also rib grass , ripple grass , ribwort plantain . [1913 Webster]
OXFORD DICTIONARY
ribwort, n. a kind of plantain (see PLANTAIN(1)) with long narrow ribbed leaves.
For further exploring for "ribwort" in Webster Dictionary Online