| cynoglossum | (n) a large genus of tall rough herbs belonging to the family Boraginaceae, Syn. genus Cynoglossum |
| chinese forget-me-not | (n) biennial east Asian herb grown for its usually bright blue flowers, Syn. Cynoglossum amabile |
| hound's-tongue | (n) perennial shrub of North America having coarse tongue-shaped leaves and pale-blue to purple flowers, Syn. Cynoglossum virginaticum |
| hound's-tongue | (n) biennial shrub of Europe and western Asia having coarse tongue-shaped leaves and dark reddish-purple flowers, Syn. Cynoglossum officinale |