Oyedaea

Oyedaea is a genus of flowering plants in the family Asteraceae, commonly known as the daisy family. These plants are native to South America, primarily found in Brazil, Paraguay, and Argentina. The genus was described by Augustin Pyrame de Candolle in 1836.

Oyedaea species are typically herbaceous perennial plants, though some can be shrubby. They generally possess opposite leaves and produce capitula, or flower heads, which are characteristic of the Asteraceae family. The flower heads are often solitary or borne in small clusters. The ray florets are usually white or yellow, and the disc florets are typically yellow or brown. The fruits are achenes, which are small, dry fruits characteristic of this family.

The exact number of species within the genus Oyedaea can vary depending on taxonomic interpretations, but it generally includes a few distinct species. These plants often inhabit open grasslands, savannas, and disturbed areas. While not widely cultivated, some species may have local uses or ecological significance within their native habitats. Further research is ongoing to clarify the taxonomy and ecological roles of various Oyedaea species.