Historical engraving of Linnaea borealis, 1737, (second from right). Linnaea is a plant genus which has often been classified in the family Caprifoliaceae (the Honeysuckle family) but may be more accurately considered to belong to its own family, Linnaeaceae. The genus includes a single, generally boreal to subarctic woodland subshrub species, Linnaea borealis, commonly known as twinflower (sometimes written twin flower). This plant was a favorite of Carl Linnaeus (1707-1778), founder of the modern system of binomial nomenclature, for whom it was named.