Growth characteristics of Dystaenia takesimana at inhabitats were studied through investigating the distribution and growth status of D. takesimana, surrounding vegetations, and soil and climatic conditions. The results obtained were as follows: 1. D. takesimana grew all over Ulneung island and its vegetation and growth were better in shady and fertile areas than sunny and infertile areas. 2. D. takesimana was much depressed by the competition with wild grasses on a sunny place, but this plant was very shade resistant. 3. As the precipitation is evenly distributed and the range of temperature is narrow during the year in Ulneung island, the climate is suitable for tlne growth of D. takesimana in inhabitats. 4. There was a highly significant relationship between soil moisture and organic matter content, and the growth of D. takesimana was better in the soil of high pH, organic matter and mineral content at inhabitats.