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Natural orchid is one of the most important tropical biodiversity. In Indonesia there are ± 6000 species out of 30000 orchids species in the world, of which there are ± 60 species at Mount Merapi. Repetitive eruption of Merapi have wiped out the biodiversity of orchids, therefore the efforts to conserve the orchids and to establish the database of natural orchids in Mount Merapi are needed. The orchid's database can be created based on DNA analysis, and establish barcoding DNA. DNA-barcodes can be used as molecular markers. The different character of morphology usually shows different pattern in DNA fragments. This research aims to characterize the phenotype and genotype of natural orchids of Mt. Merapi based on morphology and the structure of DNA in trnL-F intergenic region of chloroplasts DNA of orchid. Amplified Fragment Length Polymorphism (AFLP) technique was used to characterize the molecular types of orchids in silico of intergenic space area of orchid chloroplast. In this study, 11 species of orchids were characterized based on morphological and molecular characters. The molecular characters were obtained from trnL-F intergenic region of leaves chloroplasts. The data indicates that there is a conserve DNA pattern in all orchids and the distinctive characters of some orchids. In this study, based on trnL-F intergenic region of chloroplast genome, the phylogenetic tree revealed that 11 species of orchids at Mt. Merapi can be grouped into 2 clades, that matched with morphological characters. [ABSTRACT FROM AUTHOR]