Hairbell (Campanula) - The alpine kinds are charming for rock gardens, and not as a rule difficult to cultivate.
Alpine Hairbell (Campanula Alpina) - Covered with stiff down, giving it a slightly grey appearance, 5 to 10 inches high; flowers of dark fine blue, scattered along the stems, margins of mixed border, and the rock garden.
Tufted Hairbell (Wahlenbergia) - A charming group of alpine plants allied to the Hairbells, and mostly inhabiting the mountains of Dalmatia and Asia Minor.
Carpathian Hairbell (Campanula Carpatica) - A dwarf plant of free-flowering habit, the light-blue flowers large and cup-shaped, borne on footstalks 12 to 15 inches high in July and August in succession.
Mont Cenis Hairbell (Campanula Cenisia) - A high alpine plant growing among Saxifraga biflora on the sides of glaciers, making little show above ground but vigorous below, and compact rosettes of light green leaves, with blue flowers.