《中药材》1994年第2期35页发表的艾广凤的“对山药药用部位的建议”一文,对前目山药药用部位,文献记载不一的现象,发表了自己的看法,认为山药的药用部位是根。对此笔者有不同看法,理由如下: 1.原药材横切面组织结构可见维管束散在于基本组织中。具备单子叶植物地下茎的组织特征,而不具备单子叶植物根的组织结构。 The article “Recommendations on Medicinal Parts of Chinese Yam” by Ai Guangfeng published in 35 pages of the Chinese Medicinal Materials, 1994, No. 2, published his own opinion on the phenomena of different parts of the herbaceous parts of Qianwang yam and the literature. The medicinal site of yam is root. This author has different views, the reasons are as follows: 1. The original medicine cross-section organizational structure visible vascular bundles scattered in the basic organization. It has the characteristics of the tissues of the monocotyledonous underground stem but does not have the monocotyledonous root tissue structure.