Hound's-Tongue, or Cynoglossum, L. a genus of plants consisting of eight species, two of which are natives of Britain : the principal of these is the officinale, Common Great Hound's-tongue, or Dog's-tongue, which is frequently found on road sides, and among rubbish; where it flowers in June. - 'It is eaten by-goats, but refused by sheep, horses, hogs, and cows.—-Its scent is very disagreeable, and resembles the odour of mice.
This plant has a bitter taste, and is so powerfully narcotic, that persons who had eaten it as a culinary vegetable, were laid into a profound sleep for fourteen hours; and others died in consequence. The roots, however, were, according to Ray, employed by Dr. Hulse, who prescribed a decoction of them internally, and cataplasms externally in scrophulous cases. The leaves and roots have likewise been recommended for the same purposes, and also for coughs, dysenteries, etc. on account of their mucilaginous, astringent, and sedative qualities, of which we have had no experience.