Distribution of Isotrema pseudohei, I. hei and I. moupinense based on field observation, specimens, color photos and literatures examined.

 
 
  Part of: Wang J, Li G-D, Yang J-J, Shen B, Pu C-X, Zhu X-X (2021) Taxonomic studies on the genus Isotrema (Aristolochiaceae) from China III: I. pseudohei, a new species from Yunnan, Southwest China. PhytoKeys 186: 43-52. https://doi.org/10.3897/phytokeys.186.63543