Cymbidium goeringii is a very famous traditional orchid plant in China, which is well known for its spectacular and diverse flower morphology.In particular, the multi-tepal mutants have considerable ecological and cultural value.To identify the genes and pathways related to this mutant morphogenesis, we performed expression profiling of both microRNA (miRNA) and mRNA from wild type and typical multi-tepal-mutant flowers of Cymbidium goeringii for the first time.