Disanthus cercidifolius Maxim. var. longipes H. T. Chang, a plant speciesthat only occurs in a few counties in Hunan, Jiangxi and Zhejiang Provinces and with relatively small numbers of individuals, is recorded as the 2nd Class endangered species for conservation in China.According to the data from the field observation, we studied the flowering phenology variation, and the temporal as well as spatial variations of reproductive modules in the natural populations of the species. The variations in morphologic...