foliage
/ˈfəʊlɪɪdʒ/noun
mass noun
- plant leaves, collectively总称叶, 叶子：
healthy green foliage.
有益健康的绿叶。
词源
late Middle English foilage （in the sense 'design resembling leaves'）： from Old French feuillage, from feuille 'leaf', from Latin folium. The change in the first syllable was due to association with Latin folium.