'Hound's-tongue' definitions:

Definition of 'hound's-tongue'

From: WordNet
noun
Perennial shrub of North America having coarse tongue- shaped leaves and pale-blue to purple flowers [syn: hound's-tongue, Cynoglossum virginaticum]
noun
Biennial shrub of Europe and western Asia having coarse tongue-shaped leaves and dark reddish-purple flowers [syn: hound's-tongue, Cynoglossum officinale]

Definition of 'Hound's-tongue'

From: GCIDE
  • Hound's-tongue \Hound's"-tongue`\, n. [AS. hundes tunge.] (Bot.) A biennial weed (Cynoglossum officinale), with soft tongue-shaped leaves, and an offensive odor. It bears nutlets covered with barbed or hooked prickles. Called also dog's-tongue. [1913 Webster]