Shaanxi is situated in the region that connects loess plateau and Qingling Bashan mountain. Here grow various woody plants, summing into 1260 species (in cluding infraspecific taxon) that belong to 101 families and 324 genera, of which there are 27 Chinese endemic genera (not induding cultivated plants) and 25 Shaanxi endem ic taxa. Based on the analysis of the dominant geographical elements of the flora, the paper has discussed the major characteristics of the flora as follows: 1. rich species;2. origining...