Epidalea

Epidalea is a genus of flowering plants in the family Asteraceae. The genus was established by Constantine Samuel Rafinesque in 1828. Plants in this genus are native to the Mediterranean region, with several species found in southern Europe, North Africa, and the Middle East. Epidalea species are typically annual or perennial herbs, often characterized by their daisy-like flowers.

The most well-known species within this genus is Epidalea viscosa, formerly classified as Inula viscosa or Dittrichia viscosa. This species is commonly known as sticky fleabane or sticky-inula. It is a widespread and often abundant plant, recognized for its glandular, sticky leaves that emit a characteristic aromatic scent, particularly when crushed or on warm days. The flowers are bright yellow and appear from late summer through autumn. Epidalea viscosa has a history of traditional medicinal uses, with various parts of the plant being employed for different ailments. It is also known to be a pioneer species, often colonizing disturbed or degraded land.

Other species in the Epidalea genus, such as Epidalea graveolens, share similar characteristics with Epidalea viscosa, including sticky foliage and yellow flowers. The taxonomy of this genus has seen some changes over time, with species being moved between different genera, but Epidalea is now recognized as a distinct group within the Asteraceae family. The plants are generally hardy and can adapt to a range of soil conditions, although they often prefer well-drained soils.