Local vegetation and lava on Etna volcano, Sicily, Italy. March 25, 2014. The mountain’s three ecological zones exhibit its own characteristic vegetation. About 2,500 meters from the arid summit, amid views of lunar landscapes, there are profusions of saponaia flowers, Sicilian astragalus, tansy, cerastium, senecio, camomile of Etna, Etna rennet, romice and kinds of moss and lichen.