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踏郎,又称羊柴、山花子、山竹子、油葫芦稍,中名蒙古岩黄芪,蒙名陶尔涝,豆科岩黄芪属,分布在苏联、蒙古和我国的内蒙、陕西、宁夏、甘肃等省区。自然生长带在东经90°～125°,北纬38°～48°之间,踏郎分布区的年降雨量一般为150～400毫米,干燥度为1.48～4.0。野生的踏郎多与木蓼、沙蒿、柠条等混生,组成复合群丛,有时也在半固定沙丘上形成大而集中的单独群丛。
Shalang, also known as Sheep Chai, Shanhuazi, mountain bamboo, oil gourd slightly, the name of the Mongolian rock Astragalus, Mongolian Tao Erlao, Leguminosae Astragalus, located in the Soviet Union, Mongolia and China’s Inner Mongolia, Shaanxi, Ningxia, Gansu and other provinces. The natural growth zone is between 90 ° -125 ° E and 38 ° -48 ° N. Latitudinal rainfall is generally 150-400 mm and the dryness is 1.48-4.0. The wild Pedro and Polygonum, Artemisia, Caragana and other mixed to form a complex group, and sometimes also in the semi-fixed sand dunes form a large and concentrated individual clusters.