Curcuma tuanii(Zingiberaceae) a new species ofsubgenus Ecomata from northern Vietnam based on morphological and molecular evidence

A new species, Curcuma tuanii (Zingiberaceae), is described and illustrated from Hoa Binh Province northern Vietnam based on both the morphological and molecular data. The species is morphologically compared with its closest allies from subgenus Ecomata. Additionally, the anatomical structures of the species were provided.