Containing the sugars generated in leaves during photosynthesis, phloem sap is thick, like honey, and flows down the plant's phloem tissue to distribute sugar throughout the tree.

包含树叶光合作用产生的糖分，韧皮树液很稠，像蜂蜜，沿着植物的韧皮组织向下流动把糖份送到树的各个部分。