Twenty characters of the pinnately compound leaf of 17 individual plants representing 8 cultivars in Paeonia suffruticosa Andr. 测量了8个牡丹品种、17个植株(每品种2~3株)的羽状复叶的20个性状。
This provided an evidence for the viewpoint that the pinnately compound leaf group was primitive and pseudo-palmately compound leaf group was relatively advanced. 这一研究结果可以作为羽状叶是原始类群、假掌状叶是较进化类群观点的证据。