[Evolution of the origin of strain of Shancigu (Rhizoma Pleionis)].

Shancigu (Rhizome Pleionis) was first recorded in the Ben cao shiyi (Supplements to Chinese Materia Medica). The source of the strain of this medicinal was unclear because of its too simple description in the medical books in the Tang and Song dynasties. Its original plant could be Cremastra appendiculata (D.Don) Makino, Tulipa edulis (Miq.) Baker and so on. The original plant of Shanciguwas Tulipaedulis since the Ming dynasty to the Republican period. The name of "Guangcigu" began to appear in the Republican period because of the changes of its processing method. The original plants evolved into Cremastra appendiculata, Pleione bulbocodioides (Franch.) Rolfe and Pleione yunnanensis Rolfe, with Tulipa edulisas the original plant of Guangcigu (Bulbus of Tulipasedulis). It is found that only the Tulipaedulis is the unequivocal origin with the longest medicinal history through sorting out of the original plants of Shancigu. Hence, it is suggested that Tulipa edulis should be recovered as the original strain of Shancigu.