Zingiber chengii Y.H.Tseng, C.M.Wang & Y.C.Lin, sp. nov. A habit B rhizome C the cross-section of rhizome D leaf blade E ligule and sheath (side view) E’ sheath (front view) F inflorescence G flower dissection 1 fertile bracts 2 Bracteole 3 calyx 4 dorsal corolla lobe 5 lateral corolla lobes 6 Labellum with basally connate lateral staminodes 7 ovary 8 floral tube with stamen and stigma (side view) H−J fruit K seeds.