Annosa

Annosa is a genus of plants in the family Asteraceae, commonly known as the daisy family. The genus was described by botanists George Bentham and Joseph Dalton Hooker in 1873. Plants in the genus Annosa are typically found in the Mediterranean region and parts of Asia.

The most well-known species within the genus is Annosa annua, also known by its common name, annual fleabane. This species is an annual herbaceous plant that can grow up to 60 centimeters in height. It is characterized by its small, daisy-like flowers with numerous ray florets and a yellow central disc. The leaves are typically toothed and arranged alternately along the stem. Annosa annua is often considered a weed in agricultural settings due to its rapid growth and prolific seed production. However, it has also been used in traditional medicine in some regions.

Other species within the Annosa genus share similar characteristics, including their daisy-like inflorescences and herbaceous growth habit. Research into the genus Annosa continues to explore their genetic relationships, ecological roles, and potential applications. The taxonomy of Annosa is subject to ongoing study, with some classifications occasionally placing species in different genera based on new findings.