Heterostemma cucphuongense T.B.Tran & Rodda A flowering branch B flower, view from above (adaxial) C flower, from underneath D corona, from above E ovary F pollinarium. (Photographs by N.Q. Dat, T.B. Tran, Thuong V.A., photo edit by M. Rodda)

 
 
  Part of: Tran TB, Han LN, Hai DV, Quang BH, Huong NTT, Ha BT, Hai TV, Rodda M (2020) Heterostemma cucphuongense (Apocynaceae, Asclepiadoideae), a new species from Vietnam. PhytoKeys 148: 119-124. https://doi.org/10.3897/phytokeys.148.50029