抄録
Lespedeza section Macrolespedeza is dubbed “Hagi (Japanese bush clover).”People used Hagi not only for manure or forage, but also used for slope seedling from former times to the present day. Hagi forms the scene of the field of autumn in Japan, and it can be said that it is ruderal plants seen by many Japanese people. In this study, we aimed at offer the basic data for form the landscape that the ruderal plants grow by grasp of habitat characteristics of Lespedeza section Macrolespedeza in Yatsu paddy fields. As a result, we identified growth of L. bicolor and L. buergeri as L. section Macrolespedeza. It developed that grows of L. bicolor is not involved in a direction in the herbaceous layer on lowermost hillside slopes and the location which people are seldom concerned is appropriate for growth. And it noted there are many branch of L. bicolor have traces of cutting. On the other hand, we identified L. buergeri have strong relation with rock. If nobody will mow the herbaceous layer on lowermost hillside slopes, The growth of Lespedeza section Macrolespedeza will decrease.
