Commonly known as hellebores /ˈhɛlᵻbɔərz/, the Eurasian genus Helleborus comprises approximately 20 species of herbaceous or evergreen perennial flowering plants in the family Ranunculaceae, within which it gave its name to the tribe of Helleboreae. The scientific name Helleborus derives from the Greek name for H. orientalis, ἑλλέβορος helléboros, from elein "to injure" and βορά borá "food". Many species are poisonous. Despite names such as "winter rose", "Christmas rose" and "Lenten rose", hellebores are not closely related to the rose family (Rosaceae).