对中药首乌类的原植物调查和商品鉴定表明，何首乌植物来源单一，另有同科2种植物的决根混作何首乌使用；萝摩科鹅绒藤属6种植物的块根分别在不同地区作白首乌使用。列出了原植物鉴定检索表，基本上搞清了首乌类的基源、分布和产销情况。

A survey on drug resources and identification or the commercial drugs showed that Heshouwu was derived from Polygonum multiflorum and the roots of another two species of the same family were misused as Heshouwu. The roots of 6 species of Cynanchum genus, Asclepiadaceae were used as Baishouwu in different regions. The index of botanical identification was listed. Botanical origins, distribution, production and sale of "Shouwu" were investigated.