The paper had studied phenological phase of three wild plants in Haishi Park at limestone mountainous area of Chongqing which were Berchemia polyphylla var.leioclada,Caesalpinia decapetala and Bauhinia glauca subsp.hupehana.Samples were selected based on terrain,and it had selected 30 plants of Berchemia polyphylla var.leioclada and Caesalpinia decapetala and 7 plants of Bauhinia glauca subsp.hupehana which were different in shape but similar in size.Fixed point observation was conducted on them and observation results were recorded.It had explored ornamental value of the three wild plants and identified their corresponding ornamental periods,so as to provide scientific reference and suggestions for gardening and application of the three wild plants.
