1. Allen DE, Hatfield G (2004) Folk traditional medicinal plants: An Ethnobotany of Britain & Ireland. Timber Press, Portland, p 327
2. Bai H, Li W, Zhao HX et al (2014) Isolation and structural elucidation of novel cholestane glycosides and spirostane saponins from Polygonatum odoratum. Steroids 80:7–14
3. Baral SR, Kurmi PP (2006) A compendium of medicinal plants in Nepal. Rachana Sharma, Kathmandu
4. Chen CX, Zhou J (1981) Studies on the saponin components of plants in Yunnan V. steroid glycosides and β-ecdysone of Paris polyphylla SM. Var. yunnanensis (FR.) H-M. Act Bot Yunnan 3:89–93
5. Chen CX, Zhou J (1984) Studies on the saponin components of plants in Yunnan X. two new steroidal saponins of Paris Axialis. H. Li. (1). Act Bot Yunnan 6:111–117