breckan

And away she went through the thick breckan, holding on to the swaying leash that held the galloping greyhound, and running swiftly as though she had been making down for the shore to get out the Maighdean-mhara.

Lippincott's Magazine of Popular Literature and Science Volume 12, No. 28, July, 1873 Various

The master-form or type of the era was the fern, or breckan, of which about one hundred and thirty species have already been ascertained as entering into the composition of coal. {84a} The fern is a plant which thrives best in warm, shaded, and moist situations.

Vestiges of the Natural History of Creation Robert Chambers 1836

In a short time we came into a country of hillocks and pastures brown and barren, half covered with ferns, the breckan of the Scotch, where the broom flowered gaudily by the road-side, and harebells now in bloom, in little companies, were swinging, heavy with the rain, on their slender stems.

Letters of a Traveller Notes of Things Seen in Europe and America William Cullen Bryant 1836

Perth may sleep soft enough on a bed of Highland breckan.”

The Fair Maid of Perth 2008

Maiden of Perth may sleep soft enough on a bed of Highland breckan. "

The Fair Maid of Perth St. Valentine's Day Walter Scott 1801