Pogostemon hainanensis A branch B leaf C, D leaf E spike of inflorescence F stem G cross section of stem H bract (the left one) and bracteoles (the right two) I, J flower K calyx L nutlets.

 
 
  Part of: Yuan L, Tan G, Zhang W, Xue B, Deng J, Liu L, Yao G (2022) Molecular and morphological evidence for a new species of Pogostemon (Lamiaceae) from Hainan Island, China. PhytoKeys 188: 177-191. https://doi.org/10.3897/phytokeys.188.76611