This study was carried out to investigate the distribution, morphological and ecological characteristics, cross fertility and peroxidase banding pattern in floral buds of wild Prunus yedoensis var. nudiflora and its putative parents, P. subhirtella and P. donarium growing at Haenam districts in Korea. P. yedoensis was distributed 200-250 m elevation and showed extensive variations in sterility and morphological variations. The morphological characteristics of P. yedoensis are judged to be intermediate between P. subhirtella and P. donarium. P. subhirtella and P. donarium were naturally found 150-350 m and 150-900 m elevation. Flowering date of p. subhirtella, P. donarium and p. Yedoensis were early April, mid-to-late April and around April 8, respectively. The floral morphology of p. yedoensis showed greater variations than that of p. subhirtella. It is proved that p. yedoensis is an interspecific hybrid between P. subhirtella and P. donarium considering the intermediate characteristics of flower, leaf and peroxidase banding pattern of the floral buds by isoelectric focusing electrophoresis.
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