castellanthe

Castellanthe is a genus of flowering plants in the family Asteraceae, commonly known as the daisy family. The genus currently contains a single species, Castellanthe radiata. This perennial herb is native to the Iberian Peninsula, specifically found in parts of Spain and Portugal.

Castellanthe radiata typically grows in rocky or sandy soils, often found in mountainous or coastal regions. Its habitat can include open grasslands, scrublands, and disturbed areas. The plant is characterized by its small, daisy-like flower heads, which are usually white with a yellow center. The leaves are generally basal and somewhat leathery.

The genus Castellanthe was described by botanist T.G. Tutin in 1964. The species Castellanthe radiata was previously classified under other genera, including Asteriscus, before being moved to its current classification. Phylogenetic studies have supported its distinctiveness within the Asteraceae family.

Reproduction in Castellanthe radiata occurs through seeds. The plant is adapted to its Mediterranean climate, with a period of dormancy during the hot, dry summer months. Its conservation status is considered of least concern in most of its native range, though localized populations may face threats from habitat loss and land development.