The local endemic element in the flora of the W Aegean island of Evvia comprises 39 taxa (2.1 % of an estimated total of 1833 taxa). The three centres of endemism on the island are the ophiolitic areas of N Evvia, Mt Dirphis in central Evvia and Mt Ochi and the Cape Kafireas area in S Evvia. The majority of the endemic taxa inhabit limestone and ophiolitic habitats. Schizoendemics (80.8 %) form the largest category, followed by apoendemics (11.5 %) and palaeoendemics (7.7 %). Taxonomical comments on selected taxa are provided. The chromosome number of ten taxa is given for the first time.