柴达木盆地药用植物资源调查
周政, 王成, 杨仕兵, 周玉碧

Investigation of medicinal plant resources in the Qaidam Basin, China
Zheng Zhou, Cheng Wang, Shibing Yang, Yubi Zhou
图2 8个地区药用植物区系属的聚类谱系图
Fig.2 Horizontal genealogy of medicinal plant flora genera in eight districts