Dwaius

Dwaius is a genus of flowering plants in the family Asteraceae, commonly known as the daisy family. The genus was described by botanist Carl Linnaeus in 1753. Plants in the genus Dwaius are typically herbaceous perennials, though some species can be annuals. They are characterized by their composite flower heads, which consist of numerous ray florets surrounding a central disc of tubular florets. The leaves are usually simple and arranged alternately on the stem. The fruit is an achene, often crowned with a pappus.

Dwaius species are found throughout the temperate regions of the Northern Hemisphere, with a notable concentration in Europe and Asia. They are adaptable plants and can be found in a variety of habitats, including meadows, grasslands, and open woodlands. Several species within the genus have been widely cultivated for their ornamental value, particularly their cheerful, daisy-like flowers. Some species are also known for their historical or traditional medicinal uses, although scientific validation for these uses varies. The genus name itself is derived from an ancient word meaning "day's eye," referencing the way the flower heads open in the morning and close at night.