The Hymettus rock rose and scabious

654 plant species are found on Hymettus and 40 of them are endemic to Greece, according to the Volunteer Forest Protection of South Hymettus.

Two plants keep the mountain in their name: the Hymettus rock rose (Helianthemum hymettium) and the Hymettus scabious (Scabiosa hymettia). 44 species of wild orchid also grow on Hymettus.

Sources: Volunteer Forest Protection of South Hymettus, page on the flora of the mountain.