Dataset on intergenic spacer regions of chloroplast genome and potential DNA barcode of var in Vietnam.

var an epiphytic plant, is both an ornamental and a valuable medicinal plant. However, has a similar morphology to other species belonging to the genus, so it is challenging to distinguish the var plant accurately. Alternatively, if var is deformed or powdered, it is more challenging to identify. This dataset includes information on var samples collected from the natural environment and four chloroplast DNA markers to support var species identification. Phylogenetic analysis based on sequences of intergenic spacer regions (trnK-rps16, rps16-trnQ, psbI-atpA, and ndhC-trnV) shows that var is very closely related and distributed in the same group as with a Bootstrap coefficient of 99-100 %. Four intergenic spacer region sequences, trnK-rps16, rps16-trnQ, psbI-atpA, and ndhC-trnV from the chloroplast genome are potential DNA barcoding candidates to distinguish var from different species in the genus.