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本文对沙芥属（Ｐｕｇｉｏｎｉｕｍ）的两个种：沙芥（Ｐ．ｃｏｒｎｕｔｕｍＧａｅｒｔｎ．）和斧形沙芥（Ｐ．ｄｏｌａｂｒａｔｕｍＭａｘｉｍ．）的根、茎、叶做了解剖学观察。观察结果表明沙芥和斧形沙芥属于肉质多浆类旱生植物，体内薄壁组织发达，机械组织很少，适于作为食用植物予以开发。另外沙芥和斧形沙芥具有二元型的初生根、老根肉质化、有分泌细脆等这些十字花科植物的特征。这两个种之间在根、叶的结构上也有所差异。
In this paper, anatomical observation of the roots, stems and leaves of two species of Pugionium, P.cornutumGaertn. And P. dolabratumMaxim. The results showed that the sandy and mustard pulp belongs to the succulent and multi-pulp xerophyte. The parenchyma tissue is well developed in the body with few mechanical tissues and is suitable for development as a food plant. In addition, the sandy and mustard hatchlings have the characteristics of two types of primary roots, old root succulent, and the secretion of small crisp cruciferous plants. There is also a difference in the structure of roots and leaves between the two species.