The complete chloroplast genome of Cynanchum hemsleyanum and its phylogenetic analysis.

C. hemsleyanum chloroplast genome is 157,356 bp with a quadripartite structure, 37.99% GC, and 132 genes (87 protein-coding, 37 tRNA, 8 rRNA). Phylogenomic analysis places it as sister to C. thesioides with 100% bootstrap support. This resource aids molecular identification, genetic diversity, and evolutionary studies in Apocynaceae.