vegetation
noun
[ vɛdʒɪˈteɪʃ(ə)n ]
• plants considered collectively, especially those found in a particular area or habitat.
• "the chalk cliffs are mainly sheer with little vegetation"
• the action or process of vegetating.
Origin:
mid 16th century (in vegetation (sense 2)): from medieval Latin vegetatio(n- ) ‘power of growth’, from the verb vegetare (see vegetate).