Investigation and Study on the Geographical Distribution of Wild Buckwheat Resources in Sichuan

摘要

After systematically investigating and collecting the wild buckwheat resources of more than 60 counties in the 3 prefectures and 3 areas of Sichuan, the author finds that there are 7 species, 2 varieties, and 2 subspecies distributing different ecological areas. The author also knows that about wild buckwheat resources of Sichuan there are two main distribution centers(the Southwest and North of Sichuan);the primitive environment of wild buckwheat is diversified;the botanical features of Ey and F.z are not the same as the named-species, which are likely to be new species or varieties (undetermined)．