What is "cynoglossum officinale"

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.

''Cynoglossum officinale'' (houndstongue, houndstooth, dog's tongue, gypsy flower, and rats and mice due to its smell) is a herbaceous plant of the family Boraginaceae, found in most parts of Europe, and also North America where it was accidentally introduced.