Hound's-tongue (Cynoglossum officinale)
Hound's-tongue is one of those plants, found quite frequently here it is now uncommon in other parts of the country. Indeed, the Dorset Environmental Records Centre is actively collecting records of this plant.
A member of the Borage family Hound's-tongue is also known as the roast beef plant as it supposedly smells like roast beef when rubbed. I have never made the connection! My field guide says it smells like mice and having had mice in our garage this winter I could go along with that description.
Although it is an untidy plant it has lovely maroon flowers that were not quite out when I took this photo.