Abstract: During carryirig out the investigation of Shanxi ancient trees recent inyears, the authors found something new and it is scientific significance.In this paper, the authors report five taxa, including one new species:the narrow-leaved pagoda tree (Sophora angustifoliola Q. Q. Liu et H. Y.Ye), one new distribution to Shanxi:the colored pagoda tree (Sophora japonica var. violacea Carr.), three new forms:the dense-branched Chin-ese pine (Pinus tabulaeformis f. densa Q. Q. Liu et H. Y. Ye), the creeping Chinese arbor-vitae (Platycladus orientalis f. pendula Q. Q. Liu et H. Y. Ye)and the white flowered grey catalpa (Catalpa fargesii f. alba Q. Q. Liu etH. Y. Ye). Descriptions and distribution areas of the above taxa arealso involved.

Key words: Rare and endangered tree, New species, New form, New distribution