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依传统的分类方法,冰草属是包含有100多个种的大属.几乎囊括了所有的单秆独穗的多年生种.由于传统冰草属的生物学多样性,无法从整体上描述该属的特征.冰草属的传统定义范围太广,没有多少实用价值.当用P染色组定义该属时,它就成了一个不到十个种的小属,现在多数草本学家已接受了冰草属狭义的染色体组定义,且这种处理方法已用于欧洲植物志.冰草属物种有三种倍性水平
According to the traditional taxonomy, the genus Agrimony is a large genus that contains more than 100 species and includes almost all of the perennial species with single spikelets. Due to the biological diversity of the traditional genus Agrimony, it can not be described in its entirety The traditional definition of genus Agropyra is too broad and does not have much practical value.When the genus is defined by the P-stained genus, it becomes a genus of less than ten species and is now accepted by most herbalists Agropyron is a narrow definition of the genome, and this treatment has been used in the European Flora. Agropyron species have three ploidy levels