the phloridzin content of the leaves of Malus hupehensis from high altitude (1600 m) is 8.27%, which is significantly higher than the low altitude (50 m).

• 高海拔(1600m)生长的湖北海棠叶中含根皮苷(8.；27%25)，明显高于低海拔(50m)生长的湖北海棠。