hound's-tongue

noun

1.
perennial shrub of North America having coarse tongue-shaped leaves and pale-blue to purple flowers
Cynoglossum virginaticum Cynoglossum virginianum
2.
biennial shrub of Europe and western Asia having coarse tongue-shaped leaves and dark reddish-purple flowers
dog's tongue glovewort hound's tongue houndstongue Cynoglossum officinale