Oridonin is an ent-kaurene diterpenoid compound mainly isolated from the leaves of R.rubescen.Oridonin has been proved to possess good antitumor activity.

• 冬凌草甲素是从冬凌草等植物叶子中提取出的一种贝壳杉烯二萜类化合物,具有好的抗肿瘤活性。