陕西“马铃薯”的引入具有地域独立性，陕北、关中、陕南引种渠道各不相同，呈现多来源、多阶段的特点。陕北地区“马铃薯”的词形涉及三类：一是“山药”类；二是“洋芋”类；三是“蔓菁”类，其中陕北“山药”类与西北陆路贸易有关，“洋芋”类与关中引种有关，“蔓菁”类则是自我创新的结果。陕北“蔓菁”类与晋西南、晋东南“蔓菁”类词形无历史渊源，仅是平行演变导致的偶合现象。关中“洋芋”类词形与东南沿海地区薯种沿江传播有关。陕南“洋芋”类词形有两种来源：一是从东南沿海溯流传播而来，二是从川鄂地区而来。

The introduction of potatoes in Shaanxi has regional independence, with different channels of introduction in northern, central, and southern Shaanxi, showing multiple sources and stages. The potato terms in northern Shaanxi have three categories: "Shanyao"(yam) type; "Yangyu" (foreign potato) type; "Manjing" (vine tuber) type. Among them, the "Shanyao" type in northern Shaanxi is related to the northwest land trade; the "Yangyu" type is related to its introduction in central Shaanxi; and the "Manjing" type is the result of self-innovation. The "Manjing" type in northern Shaanxi has no historical connection with the "Manjing" terms in southwestern and southeastern Shanxi, which is a coincidence result of parallel evolution. The "Yangyu" type in central Shaanxi is related to the spread of potato varieties along the southeastern coastal areas. The "Yangyu" type in southern Shaanxi has two sources: it spread upstream from the southeastern coast; or it came from the Sichuan and Hubei regions.