IsodendrionIsodendrion is a plant genus in the family Violaceae. It includes four species native to the Hawaiian Islands.SpeciesPlants of [the World Online] accepts four species. More detailed phylogeny is provided in two papers from 2014 and 2018. Isodendrion hosakae Isodendrion laurifolium Isodendrion longifolium ''Isodendrion pyrifolium''