Koskia

Koskia is a genus of flowering plants belonging to the family Asteraceae, commonly known as the daisy family. The genus comprises approximately 12 species, primarily distributed across temperate regions of the Northern Hemisphere, including parts of Europe, Asia, and North America. These plants are often found in mountainous areas, meadows, and open woodlands, where they thrive in well-drained soils.

The most well-known species within the genus is *Koskia officinalis*, also referred to as the **wood-sorrel** or **mountain sorrel** in some regions. This perennial herb is characterized by its trifoliate leaves, which resemble those of the common sorrel (*Rumex acetosa*), though it belongs to a different family. The plant produces small, inconspicuous yellow flowers that bloom in clusters during late spring to early summer. Its leaves are edible and have a tangy, slightly sour flavor, similar to that of garden sorrel, though they are less commonly used in culinary applications.

Koskia species are of limited economic importance but hold ecological value as they contribute to local biodiversity. Some members of the genus have been traditionally used in herbal medicine, particularly in folk remedies for digestive ailments or as a source of vitamin C. However, scientific research on their medicinal properties remains limited compared to more widely studied plants.

The genus was named in honor of the Finnish botanist and physician **Carl Axel Koskull**, who contributed to the study of Finnish flora in the 18th century. Koskia plants are generally low-maintenance in cultivation, making them suitable for gardeners interested in native or wildflower species. They are often grown for ornamental purposes due to their attractive foliage and subtle flowers.