The Violet Bellflower of Limestone Gorges

Habit: A small perennial herb 5-20 cm tall. Stem: Glabrous, curved and usually simple. Leaves: Basal leaves stalked, with an ovate to heart-shaped blade and margins bearing 5-6 sharp teeth ending in a cartilaginous tip; stem leaves sessile and entire, ranging from lanceolate below to linear above. Flowers: Solitary or few at the tip of the branches. Corolla bell-shaped (10-20 mm), blue-violet in colour. Calyx lobes initially erect, then spreading during flowering and finally reflexed like hooks toward the peduncle. Fruits: Capsule with cartilaginous walls containing the seeds. Flowering: May-September.

Chorological type: Italian endemic. Distribution: Exclusive endemic of the Central Apennines, especially recorded in Marche, Umbria, Lazio and Abruzzo. Habitat: It favours shaded vertical limestone walls and gorges, from 150 up to 2000 m above sea level.

Generic name (Campanula): Diminutive of the Latin campana, referring to the bell-shaped corolla typical of much of the genus. Specific name (tanfanii): Dedicated to the memory of Enrico Tanfani (1848-1892), the distinguished Florentine botanist who made a significant contribution to the study of Italian flora in the nineteenth century.

As an endemic species with a highly specialized habitat, namely vertical limestone walls and gorges, it is protected in several protected natural areas, including the Sibillini Mountains National Park and the Gran Sasso and Monti della Laga National Park. Its survival depends on the preservation of rupestrian sites, which are sensitive both to human disturbance, such as unregulated climbing, and to microclimatic changes affecting gorge humidity.