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Psiadia, commonly known as daisy trees, is a genus of mostly woody Asian and African plants in the tribe Astereae within the family Asteraceae.[2][3] The genus is distributed throughout the Western Indian Ocean, with species reported from continental Eastern Africa, Madagascar, Mauritius, La Reunion, Rodrigues, the Comoro islands, as well as several of the smaller, uninhabited islands in the Mozambique Channel. Additional species are suspected on Socotra and Sri Lanka, but these have not been confirmed. Phylogenetic studies using DNA sequence data and biogeographic reconstruction using molecular dating have shown that the genus originated on the African mainland, and colonized Madagascar and the outlying islands in the Indian Ocean in several independent instances of overwater dispersal in the Miocene.[4]
see: Conyza Microglossa Pluchea
Psiadia, commonly known as daisy trees, is a genus of mostly woody Asian and African plants in the tribe Astereae within the family Asteraceae. The genus is distributed throughout the Western Indian Ocean, with species reported from continental Eastern Africa, Madagascar, Mauritius, La Reunion, Rodrigues, the Comoro islands, as well as several of the smaller, uninhabited islands in the Mozambique Channel. Additional species are suspected on Socotra and Sri Lanka, but these have not been confirmed. Phylogenetic studies using DNA sequence data and biogeographic reconstruction using molecular dating have shown that the genus originated on the African mainland, and colonized Madagascar and the outlying islands in the Indian Ocean in several independent instances of overwater dispersal in the Miocene.
Species Psiadia agathaeoides Psiadia altissima Psiadia amygdalina Psiadia anchusaefolia Psiadia angustifolia Psiadia argentea Psiadia aspera Psiadia balsamica Psiadia cacuminum Psiadia callocephala Psiadia cataractae Psiadia ceylanica Psiadia coarctata Psiadia coronopus Psiadia dentata Psiadia dodonaeifolia Psiadia dracaenifolia Psiadia glutinosa Psiadia grandidentata Psiadia hendersoniae Psiadia hispida Psiadia incana Psiadia laurifolia Psiadia leucophylla Psiadia linearifolia Psiadia lithospermifolia Psiadia lucida Psiadia madagascariensis Psiadia marojejyensis Psiadia melastomatoides Psiadia minor Psiadia mollissima Psiadia montana Psiadia nigrescens Psiadia pseudonigrescens Psiadia punctulata Psiadia retusa Psiadia salviifolia †Psiadia schweinfurthii Psiadia sericea Psiadia serrata Psiadia trinervia Psiadia vernicosa Psiadia viscosa Psiadia volubilis Formerly includedsee: Conyza Microglossa Pluchea
Psiadia cuspidifera - Conyza ageratoides Psiadia gnaphaliopsis - Conyza boranensis Psiadia grevei - Pluchea grevei Psiadia inuloides - Conyza vernonioides Psiadia lyciodes - Pluchea lycioides Psiadia modesta - Pluchea bojeri Psiadia urticifolia - Conyza urticifolia Psiadia volubilis - Microglossa pyrifolia