陕西省西乡县地处北纬33°度,东径108°度以西,汉水流域上游的秦岭脚下。1982年西乡县茶叶生产办公室杨晓等在进行该县茶树品种资源调查时,在中小叶种灌木型茶园里,发现一株百年以上乔木型大茶树,主干围粗直径为20厘米,从主干基部(地面)向上73厘米处生长出第一个分枝,主干上各分枝直径均在7—15厘米(见图1和图3),主干顶 Xixiang County, Shaanxi Province is located at 33 degrees north latitude, 108 degrees east longitude, the upper reaches of the Han River basin at the foot of the Qinling Mountains. In 1982, Xixiang County Tea Production Office Yang Xiao and other tea species in the county resources survey, in the middle and small leaf shrub tea garden, found a tree more than a century or more trees, the trunk circumference of coarse diameter of 20 cm, from the trunk The first branch grew 73 centimeters above the ground (ground), with all branches on the main branches 7-15 cm in diameter (see Figures 1 and 3)