J4 ›› 2012, Vol. 11 ›› Issue (9): 16-21.
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This paper analytically recorded Chinese patents during last two decades on the medicinal applications of Cynanchum
wilfordii (Maxim.) Hemsl as a Miao nationality herbal drug and Geranium strictipes R. Knuth as that of Bai/Yi nationalities. The two herbs from different families possess the same popular name of Geshanxiao. Their origins, varieties, nomenclature, folk conventional usage, major functions, and their compatibility principles are compared and summarized in order to furnish more information and suggestions on relative on-going R&D projects of these two herbal drugs.