Abstract:In this study, the eight samplesof Fagopyrum dibotrys(JQ, JQ2, JQ3, JQ4, JQ5, JQ6, JQ7, JQ8)were collected at different altitude and under shady conditions within 30 km2 of Baizhangshan Mountain, the habitat of wild Fagopyrum dibotrys germplasm resources in Jiangxi Province. The plant phenotypes were observed and the nutritional components were detected. The correlations between altitude or shady conditions and phenotypic traits or nutritional components were analyzed, and the cluster analysis of Fagopyrum dibotrys was carried out according to phenotypic traits. The results showed that there was an extremely significant positive correlation between leaf area and shady condition, and a significant positive correlation between leaf area and plant type. Plant type was extremely significantly positively correlated with crude protein and dry matter, significantly positively correlated with ash content, and significantly negatively correlated with ether extract. The leaf area was extremely significantly negatively correlated with crude lipid and significantly positively correlated with crude fiber. Both JQ1 and JQ3 were derived from the semi-shade condition above 700 m altitude, with loose plant type, large leaf area, high dry matter and crude protein content, low ether extract, and good forage quality.