We recently identified a gene, which is responsible for recurrent-blooming character in cultivated roses (Iwata et al. 2012 Plant J. 69: 116-125). The gene, named as KSN, is a TFL1 homologue and acts as floral repressor. In recurrent-blooming roses, transcription of the gene is blocked because of an insertion of the retrotransposon, and the absence of the floral repressor provokes continuous blooming. Thus, the retrotransposon plays an essential role in the development of the recurrent-blooming modern roses. The origin of the recurrent-blooming roses is known as an ancient recurrent-blooming cultivar “Old Blush” in China, which is considered as a mutant of a wild seasonal-blooming species, Rosa chinensis spontanea. Here, we report the result on a transposon display for the retrotransposon in a wide variety of Rosa species in China and Japan. The copy number and genomic distribution of the retrotransposon is also analyzed by genetic mapping. The retrotransposon spanned around 9kbp with 900bp of LTR elements in both ends and encodes a copia-like retrotransposon proteins. The copy number was estimated around 20 per haploid genome, and they scattered over all 7 chromosomes. We discuss a possible application of the method to a genetic diversity analysis of a wild Rosa species as well as to a new reverse genetic tool in roses.