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对甘肃各地艾叶的原植物调查表明，已有12种篙属植物在不同地区作艾叶或混入艾叶中，在此基础上进行形态、组织学鉴定。
A survey of the original plants in the leaves of Gansu Province shows that there are 12 species of Brassica plants in different regions as leaves or mixed in the leaves, and on this basis, the morphological and histological identification.