Vol, no p onia section sub-section species p delavayii delavayanae p ludlowii moutan p rockii p ostii p qiui vaginatae p jishanensis p szechanensis p yananensis fig. P onia section sub-section species p brownii on pia p californica p delavayii delavayanae p ludlowii moutan p rockii p ostii p qiui vaginatae p jishanensis p szechanensis..
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