A tall plant of the borage family, which bears long silky hairs, small purplish flowers, and tongue-shaped leaves, and has a mousy smell.
Cynoglossum officinale, family Boraginaceae
 Example sentencesExamples
-  Like blue hound's tongue, this plant has burrs that attach to cattle, causing irritation.
 -  In case you are not familiar with hound's tongue, please get familiar with it and watch for large populations.
 -  Hound's Tongue is so named because of its broadly oval leaves which apparently look like hound's tongues.
 -  Great hound's tongue may be found from southern British Columbia south to San Luis Obispo and Tulare counties, Californa.
 -  The large nutrient reserves in seeds of hound's tongue allow rapid seedling root growth.