[Wikipedia] Taxonomy: The genus Corethrogyne was erected by Augustin Pyramus de Candolle in 1836[4] for the species he described as Corethrogyne californica. De Candolle explained the genus name as derived from Greek ????????, kórethron, 'broom', 'brush' and ????, gyné, 'woman', 'female',[5] referring to the appendages on the style branches.[3] In 1833, William Jackson Hooker and George A. Walker Arnott had described Aster filaginifolius. This species is now regarded as synonymous with Corethrogyne californica,[6] in which case the oldest epithet is filaginifolius, so the correct name in Corethrogyne is Corethrogyne filaginifolia. Species placed in Corethrogyne were later grouped together under the name Lessingia filaginifolia, and then moved back to genus Corethrogyne as a single species with many synonyms.[7] As of May 2024, Plants of the World Online accepted only one species in the genus Corethrogyne, Corethrogyne filaginifolia,[1] making the genus monotypic. (link added by Mary Ann Machi)