Leaves, lateral view of flowers, and longitudinal dissected flowers of Isotrema brevilimbum (A–C), I. ovatifolium (D–F), and I. wardianum (G–I). A–F Photographed by X.X. Zhu G photographed by C. Liu H, I photographed by J.D. Ya.

 
 
  Part of: Wang J, Ya J-D, Liu C, Liu G, Cao F, Ma J-S, Zhu X-X (2020) Taxonomic studies on the genus Isotrema (Aristolochiaceae) from China: II. I. brevilimbum (Aristolochiaceae), a new species from Guizhou, China. PhytoKeys 152: 15-25. https://doi.org/10.3897/phytokeys.152.51760