Abstract / Introduction / Summary:
Canavalia rosea (Sw.) DC. is a pan-tropical coastal species. In Japan, the distribution of this species has been known in the Yaeyama Islands and the Miyako Islands located in the southern Ryukyu Islands. Seeds of both C. rosea and C. lineata are drifted on the Japanese mainland. The differences between the seeds of these species were clarified and the localities of the drift seeds of C. rosea were shown. The distribution of the species was illustrated including the new localities. The distribution area is expanded to the north by sea dispersal. This may be due to the global warming.
