南北天麻间存在成分差异，云南产南天麻不含天麻甙；

The southern Gastrodia elata from YunNan province has no schizandrin B while northern Gastrodia elata has.

youdao

南北天麻间存在成分差异，云南产南天麻不含天麻甙；

The southern Gastrodia elata from YunNan province has no schizandrin B while northern Gastrodia elata has.

youdao