It is reported that Maoershi contains aristolochic acid, which is toxic to the kidney.
Source: Rhizome or whole grass of Aristolochia pubescens of Aristolochiaceae.
Origin: distributed in Henan, Jiangsu, Zhejiang, Hubei, Jiangxi, Shaanxi and other places. Medicinal materials are produced in Jiangsu, Hunan, Jiangxi and other places.
Alias: Qinggufeng, Maoer (a folk herb in Nanjing), Chuandilong Festival, Maoxiang, Solanum lyratum Thunb., Clove, Radix Aucklandiae (a herb annals of Jiangsu), White-faced Wind and Rabbit Ear (a folk herb in Jiangxi).
Ranunculus ternatus is the root tuber of Ranunculaceae, which is named after its fleshy root tuber, several clusters, nearly spindle-shaped, yellow-brown skin and cat's paw. Most of the plants in this genus are annual or perennial herbs, with about 400 species in the world, which are widely distributed in cold and warm regions. There are 78 species and 9 varieties in China, which are mainly produced in the middle and lower reaches of the Yangtze River. Generally, the toxicity is not great, and it has the function of detoxifying and resolving hard mass. Except Ranunculus ternatus, most of them are used as whole herbs, which are generally used to induce redness, swelling and blistering and acupoint application. It can treat many diseases and kill insects. Modern pharmacological and clinical studies show that Ranunculus ternatus and its preparations have curative effects on tuberculosis, lymphoid tuberculosis and various cancers and lymphomas. At the same time, Ranunculus ternatus can also be used as a garden plant with certain ornamental value.