Definition: The term "Opegraphaceae" refers to a family of flowering plants in the order Asparagales, which includes many genera and species that are commonly known as orchids. These flowers have stamens with 5 petals and typically contain a single ovary surrounded by a calyx and two tepals. The genus names are derived from the Latin word "Opege" meaning "orchid," referring to the stamen-like structure found in these plants.