Herbaceous peonies

英 美
  • 芍药
    1. In the secondary phloem of Tree Peony metaphloem was dominative in the root's secondary structure, which was just opposite to Herbaceous Peony.
      根次生结构,牡丹根次生韧皮部占主要部分,而芍药根次生木质部占主要部分。