Word Study
hogweed
CIDE DICTIONARY
hogweed, n.
A common weed (Ambrosia artemisiæge ). See Ambrosia, 3. [1913 Webster]
OXFORD DICTIONARY
hogweed, n. any of various coarse weeds of the genus Heracleum, esp. H. sphondylium.
For further exploring for "hogweed" in Webster Dictionary Online