This section is from the book "Handbook Of Hardy Trees, Shrubs, And Herbaceous Plants", by W. Botting Hemsley. Also available from Amazon: Handbook of hardy trees, shrubs, and herbaceous plants.
A genus of one species. A small elegant creeping evergreen shrub, named in honour of the celebrated Swedish botanist, and thus possessing an additional attraction in the eyes of the amateur.
1. L. borealis. - Leaves ovate, obtuse, crenate, nearly glabrous. Flowers pink, very fragrant, in pairs, on slender bracteolate axillary peduncles. Corolla campanulate. Stamens 4. Fruit small, 3-celled by abortion, 1-seeded. This charming little plant is widely spread in Europe and temperate and arctic Asia and North America, and is indigenous in the North of England and some parts of Scotland, but nowhere very abundant. It flowers in July.