On ten taxa of the genus Lycoris, their relationship and phylogeny were studied using cluster and cladistic analyses of morphological, anatomical, cytological and palynological characters. The analyses resulted in that L. sanguinea composed of three varieties which were clustered together was the most primitive of the treated species, and that four species of L. flavescens, L. chejuensis, L. squamigera and L. radio were more advanced than others. Of all treated taxa, L. radiata appeared to have the most differentiated characters.