Rhizoplaca is a genus of lichenized fungi in the family Lecanoraceae. Members of the genus are commonly called rimmed navel lichens because of their umbilicate growth form and lecanorine (rimmed with thallus-like tissue)apothecia, also rock-posy lichen and rockbright.
, Species Fungorum (in the Catalogue of Life) accepts 17 species of Rhizoplaca: