通过产地调查和标本鉴定,整理和订正了甘肃黄精属8个品种药材的植物来源。证明黄精类药材中普遍存在原植物交替现象,并对其形成原因进行了探讨。 Through field surveys and specimen identification, the plant sources of 8 medicinal materials from the genus Huangjing of Gansu Province were sorted and revised. It was proved that the original plant alternation phenomenon was common in Huangjing medicinal materials, and the reason of its formation was discussed.