perennial herb of northeastern United States having a thick knotted yellow rootstock and large rounded leaves
双语例句
Palmatine, which is closely related to berberine, is not found in Goldenseal, but is found in the Chinese medicinal plant Huanglian. 白毛茛不含有该生物碱，但是人们在中药黄连中发现了它的存在。
